diff --git a/src/mconnect/application.vala b/src/mconnect/application.vala
index f14f48f..3159532 100644
--- a/src/mconnect/application.vala
+++ b/src/mconnect/application.vala
@@ -53,12 +53,15 @@ namespace Mconn {
 
             base.startup ();
 
+            if (log_debug_verbose == true) {
+                Logging.enable_vdebug ();
+                // enable debug logging when verbose is enabled
+                log_debug = true;
+            }
+
             if (log_debug == true)
                 Environment.set_variable ("G_MESSAGES_DEBUG", "all", false);
 
-            if (log_debug_verbose == true)
-                Logging.enable_vdebug ();
-
             core = Core.instance ();
             if (core == null)
                 error ("cannot initialize core");
@@ -112,4 +115,4 @@ namespace Mconn {
             debug ("dbus unregister, path %s", object_path);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/device-proxy.vala b/src/mconnect/device-proxy.vala
index 6aa7eb4..83b970a 100644
--- a/src/mconnect/device-proxy.vala
+++ b/src/mconnect/device-proxy.vala
@@ -30,7 +30,6 @@ class DeviceDBusProxy : Object {
         }
         private set {
         }
-        default = "";
     }
     public string name {
         get {
@@ -38,7 +37,6 @@ class DeviceDBusProxy : Object {
         }
         private set {
         }
-        default = "";
     }
     public string device_type {
         get {
@@ -46,7 +44,6 @@ class DeviceDBusProxy : Object {
         }
         private set {
         }
-        default = "";
     }
     public uint protocol_version {
         get {
@@ -54,7 +51,6 @@ class DeviceDBusProxy : Object {
         }
         private set {
         }
-        default = 5;
     }
     public string address {
         get; private set; default = "";
@@ -66,7 +62,6 @@ class DeviceDBusProxy : Object {
         }
         private set {
         }
-        default = false;
     }
     public bool allowed {
         get {
@@ -74,7 +69,6 @@ class DeviceDBusProxy : Object {
         }
         private set {
         }
-        default = false;
     }
     public bool is_active {
         get {
@@ -82,10 +76,9 @@ class DeviceDBusProxy : Object {
         }
         private set {
         }
-        default = false;
     }
     public bool is_connected {
-        get; private set; default = false;
+        get; private set;
     }
 
     public string[] incoming_capabilities {
@@ -268,7 +261,7 @@ class DeviceDBusProxy : Object {
     [DBus (visible = false)]
     public void bus_register_handler (DBusConnection conn,
                                       string cap,
-                                      PacketHandlerInterfaceProxy handler) {
+                                      PacketHandlerInterfaceProxy handler) throws Error {
 
         handler.bus_register (conn, this.object_path);
         this.handlers.@set (cap, handler);
@@ -276,7 +269,7 @@ class DeviceDBusProxy : Object {
 
     [DBus (visible = false)]
     public void bus_unregister_handler (DBusConnection conn,
-                                        string cap) {
+                                        string cap) throws Error {
         PacketHandlerInterfaceProxy handler;
 
         this.handlers.@unset (cap, out handler);
@@ -284,4 +277,4 @@ class DeviceDBusProxy : Object {
             handler.bus_unregister (conn);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/device.vala b/src/mconnect/device.vala
index 18e01ef..4fb696a 100644
--- a/src/mconnect/device.vala
+++ b/src/mconnect/device.vala
@@ -193,7 +193,7 @@ class Device : Object {
             dev.host = host;
 
             return dev;
-        } catch (KeyFileError e) {
+        } catch (Error e) {
             warning ("failed to load device data from cache: %s", e.message);
             return null;
         }
@@ -617,7 +617,7 @@ class Device : Object {
     public void send (Packet pkt) {
         // TODO: queue messages
         if (this._channel != null) {
-            _channel.send (pkt);
+            _channel.send.begin (pkt);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/devicechannel.vala b/src/mconnect/devicechannel.vala
index 11d2ab6..f85ceef 100644
--- a/src/mconnect/devicechannel.vala
+++ b/src/mconnect/devicechannel.vala
@@ -150,10 +150,11 @@ class DeviceChannel : Object {
         var cert = Core.instance ().certificate;
 
         // wrap with TLS
-        var tls_conn = Utils.make_tls_connection (this._sock_conn,
+        TlsConnection tls_conn;
+        try {
+            tls_conn = Utils.make_tls_connection (this._sock_conn,
                                                   cert,
                                                   expected_peer);
-        try {
             info ("attempt TLS handshake");
             var res = yield tls_conn.handshake_async ();
 
@@ -298,4 +299,4 @@ class DeviceChannel : Object {
             this.packet_received (pkt);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/devicemanager-proxy.vala b/src/mconnect/devicemanager-proxy.vala
index 56e0f77..16a016f 100644
--- a/src/mconnect/devicemanager-proxy.vala
+++ b/src/mconnect/devicemanager-proxy.vala
@@ -25,8 +25,7 @@ class DeviceManagerDBusProxy : Object {
         owned get {
             return Core.instance ().certificate.certificate_pem;
         }
-        private set {
-        }
+        private set {}
     }
 
     public signal void device_added (string path);
@@ -52,7 +51,7 @@ class DeviceManagerDBusProxy : Object {
     }
 
     [DBus (visible = false)]
-    public void publish () throws IOError {
+    public void publish () throws Error {
         assert (this.bus != null);
 
         this.bus.register_object (DBUS_PATH, this);
@@ -64,7 +63,7 @@ class DeviceManagerDBusProxy : Object {
      *
      * Allow given device
      */
-    public void allow_device (string path) {
+    public void allow_device (string path) throws Error {
         debug ("allow device %s", path);
 
         var dev_proxy = this.devices.@get (path);
@@ -83,7 +82,7 @@ class DeviceManagerDBusProxy : Object {
      *
      * Disallow given device
      */
-    public void disallow_device (string path) {
+    public void disallow_device (string path) throws Error {
         debug ("disallow device %s", path);
 
         var dev_proxy = this.devices.@get (path);
@@ -101,7 +100,7 @@ class DeviceManagerDBusProxy : Object {
      *
      * Returns a list of DBus paths of all known devices
      */
-    public ObjectPath[] list_devices () {
+    public ObjectPath[] list_devices () throws Error {
         ObjectPath[] devices = {};
 
         foreach (var path in this.devices.keys) {
@@ -155,7 +154,11 @@ class DeviceManagerDBusProxy : Object {
                                                                    capability,
                                                                    iface);
         if (h != null) {
-            h.bus_register (this.bus, dp.object_path);
+            try {
+                h.bus_register (this.bus, dp.object_path);
+            } catch (Error e) {
+                warning ("cannot register handler at path %s: %s", dp.object_path, e.message);
+            }
         }
     }
 
@@ -172,4 +175,4 @@ class DeviceManagerDBusProxy : Object {
 
         return path;
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/discovery.vala b/src/mconnect/discovery.vala
index f45d0a0..b2bdabf 100644
--- a/src/mconnect/discovery.vala
+++ b/src/mconnect/discovery.vala
@@ -93,4 +93,4 @@ class Discovery : GLib.Object {
 
         device_found (dev);
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/logging.vala b/src/mconnect/logging.vala
index 26988da..601a215 100644
--- a/src/mconnect/logging.vala
+++ b/src/mconnect/logging.vala
@@ -41,4 +41,4 @@ void vdebug (string format, ...) {
         var l = va_list ();
         logv (null, LogLevelFlags.LEVEL_DEBUG, format, l);
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/mpris-proxies.vala b/src/mconnect/mpris-proxies.vala
index 8670d63..9a2436a 100644
--- a/src/mconnect/mpris-proxies.vala
+++ b/src/mconnect/mpris-proxies.vala
@@ -19,7 +19,7 @@
 [DBus (name = "org.freedesktop.DBus")]
 public interface DBusProxy : Object {
 
-    public abstract string[] list_names () throws IOError;
+    public abstract string[] list_names () throws Error;
 
     public signal void name_owner_changed (string name, string old_owner, string new_owner);
 }
@@ -33,10 +33,10 @@ public interface DBusPropertiesProxy : Object {
 [DBus (name = "org.mpris.MediaPlayer2.Player")]
 public interface MprisPlayerProxy : Object {
 
-    public abstract void next () throws IOError;
-    public abstract void previous () throws IOError;
-    public abstract void play_pause () throws IOError;
-    public abstract void seek (int64 Offset) throws IOError;
+    public abstract void next () throws Error;
+    public abstract void previous () throws Error;
+    public abstract void play_pause () throws Error;
+    public abstract void seek (int64 Offset) throws Error;
 
     public abstract string playback_status {
         owned get;
@@ -76,4 +76,4 @@ public interface MprisProxy : Object {
     public abstract string identity {
         owned get;
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/mpris.vala b/src/mconnect/mpris.vala
index 3f4bce5..c64e8c1 100644
--- a/src/mconnect/mpris.vala
+++ b/src/mconnect/mpris.vala
@@ -173,13 +173,14 @@ class MprisHandler : Object, PacketHandlerInterface {
                 prop.can_seek = mpris_player.can_seek;
                 update_status (make_player_prop_packet (player_id, prop));
             }
-        } catch (IOError e) {
+        } catch (Error e) {
             warning ("dbus communication failed: %s", e.message);
             return;
         }
     }
 
     private static void get_metadata_string (HashTable<string, Variant> metadata, string meta_what, out string where) {
+        where = "";
         if (metadata.contains (meta_what) &&
             metadata.get (meta_what).is_of_type (VariantType.STRING)) {
             where = metadata.get (meta_what).get_string ();
@@ -369,7 +370,7 @@ class MprisHandler : Object, PacketHandlerInterface {
                     add_player (bus_name);
                 }
             }
-        } catch (IOError e) {
+        } catch (Error e) {
             warning ("failed to get mpris player list: %s", e.message);
         }
     }
@@ -396,7 +397,7 @@ class MprisHandler : Object, PacketHandlerInterface {
                                                    bus_name,
                                                    "/org/mpris/MediaPlayer2");
             player_list.insert (mpris.identity, bus_name);
-        } catch (IOError e) {
+        } catch (Error e) {
             warning ("failed to connect to mpris player: %s", e.message);
         }
     }
@@ -414,4 +415,4 @@ class MprisHandler : Object, PacketHandlerInterface {
             player_list.remove (key);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/packethandlerinterface-proxy.vala b/src/mconnect/packethandlerinterface-proxy.vala
index dabb458..71bf911 100644
--- a/src/mconnect/packethandlerinterface-proxy.vala
+++ b/src/mconnect/packethandlerinterface-proxy.vala
@@ -20,6 +20,6 @@
  * PacketHandlerInterfaceProxy: interface of DBus exported packet handler
  */
 interface PacketHandlerInterfaceProxy : Object {
-    public abstract void bus_register (DBusConnection conn, string path) throws IOError;
-    public abstract void bus_unregister (DBusConnection conn) throws IOError;
-}
\ No newline at end of file
+    public abstract void bus_register (DBusConnection conn, string path) throws Error;
+    public abstract void bus_unregister (DBusConnection conn) throws Error;
+}
diff --git a/src/mconnect/share-proxy.vala b/src/mconnect/share-proxy.vala
index a278e28..c84c7c3 100644
--- a/src/mconnect/share-proxy.vala
+++ b/src/mconnect/share-proxy.vala
@@ -29,25 +29,25 @@ class ShareHandlerProxy : Object, PacketHandlerInterfaceProxy {
     }
 
     [DBus (visible = false)]
-    public void bus_register (DBusConnection conn, string path) throws IOError {
+    public void bus_register (DBusConnection conn, string path) throws Error {
         conn.register_object (path, this);
     }
 
     [DBus (visible = false)]
-    public void bus_unregister (DBusConnection conn) throws IOError {
+    public void bus_unregister (DBusConnection conn) throws Error {
         // conn.unregister_object(this);
     }
 
-    public void share_file (string path) throws IOError {
+    public void share_file (string path) throws Error {
         this.share_handler.share_file (this.device, path);
     }
 
-    public void share_url (string url) throws IOError {
+    public void share_url (string url) throws Error {
         debug ("share url %s", url);
         this.share_handler.share_url (this.device, url);
     }
 
-    public void share_text (string text) throws IOError {
+    public void share_text (string text) throws Error {
         this.share_handler.share_text (this.device, text);
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/share.vala b/src/mconnect/share.vala
index af9f6c4..059c5b9 100644
--- a/src/mconnect/share.vala
+++ b/src/mconnect/share.vala
@@ -105,7 +105,11 @@ class ShareHandler : Object, PacketHandlerInterface {
             debug ("got URL: %s, launching...", url);
             Utils.show_own_notification ("Launching shared URL",
                                          dev.device_name);
-            AppInfo.launch_default_for_uri (url, null);
+            try {
+                AppInfo.launch_default_for_uri (url, null);
+            } catch (Error e) {
+                warning ("cannot launch application: %s", e.message);
+            }
         }
     }
 
@@ -161,7 +165,7 @@ class ShareHandler : Object, PacketHandlerInterface {
         dev.send (make_share_packet ("text", text));
     }
 
-    public void share_file (Device dev, string path) {
+    public void share_file (Device dev, string path) throws Error {
         debug ("share file %s to device %s", path, dev.to_string ());
 
         var file = File.new_for_path (path);
@@ -206,4 +210,4 @@ class ShareHandler : Object, PacketHandlerInterface {
         t.start_async.begin ();
         dev.send (make_file_share_packet (file.get_basename (), size, port));
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/telephony-proxy.vala b/src/mconnect/telephony-proxy.vala
index a1da4c3..165eb2d 100644
--- a/src/mconnect/telephony-proxy.vala
+++ b/src/mconnect/telephony-proxy.vala
@@ -38,7 +38,7 @@ class TelephonyHandlerProxy : Object, PacketHandlerInterfaceProxy {
         // conn.unregister_object(this);
     }
 
-    public void send_sms (string number, string message) {
+    public void send_sms (string number, string message) throws Error {
         this.telephony.send_sms (this.device, number, message);
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/transfer-download.vala b/src/mconnect/transfer-download.vala
index 061f3ac..b82b9ed 100644
--- a/src/mconnect/transfer-download.vala
+++ b/src/mconnect/transfer-download.vala
@@ -69,13 +69,13 @@ class DownloadTransfer : TransferInterface, Object {
         Utils.socket_set_keepalive (sock);
 
         // enable TLS
-        this.tls_conn = Utils.make_tls_connection (this.conn,
-                                                   Core.instance ().certificate,
-                                                   this.device.certificate,
-                                                   Utils.TlsConnectionMode.CLIENT);
         try {
+            this.tls_conn = Utils.make_tls_connection (this.conn,
+                                                       Core.instance ().certificate,
+                                                       this.device.certificate,
+                                                       Utils.TlsConnectionMode.CLIENT);
             debug ("attempt TLS handshake");
-            var tls_res = yield this.tls_conn.handshake_async ();
+            yield this.tls_conn.handshake_async ();
 
             debug ("TLS handshake complete");
         } catch (Error e) {
@@ -124,7 +124,7 @@ class DownloadTransfer : TransferInterface, Object {
         if (this.foutstream != null) {
             try {
                 this.foutstream.close ();
-            } catch (IOError e) {
+            } catch (Error e) {
                 warning ("failed to close file output: %s",
                          e.message);
             }
@@ -133,7 +133,7 @@ class DownloadTransfer : TransferInterface, Object {
         if (this.tls_conn != null) {
             try {
                 this.tls_conn.close ();
-            } catch (IOError e) {
+            } catch (Error e) {
                 warning ("failed to close TLS connection: %s",
                          e.message);
             }
@@ -141,7 +141,7 @@ class DownloadTransfer : TransferInterface, Object {
         if (this.conn != null) {
             try {
                 this.conn.close ();
-            } catch (IOError e) {
+            } catch (Error e) {
                 warning ("failed to close connection: %s",
                          e.message);
             }
@@ -155,8 +155,11 @@ class DownloadTransfer : TransferInterface, Object {
     }
 
     private void cleanup_error (string reason) {
-
-        this.file.@delete ();
+        try {
+            this.file.@delete ();
+        } catch (Error e) {
+            warning ("cannot remove file: %s", e.message);
+        }
 
         this.cleanup ();
 
@@ -184,4 +187,4 @@ class DownloadTransfer : TransferInterface, Object {
         debug ("cancel called");
         this.cancellable.cancel ();
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/transfer-manager-proxy.vala b/src/mconnect/transfer-manager-proxy.vala
index 579a229..a2d9113 100644
--- a/src/mconnect/transfer-manager-proxy.vala
+++ b/src/mconnect/transfer-manager-proxy.vala
@@ -20,8 +20,6 @@ using Gee;
 
 [DBus (name = "org.mconnect.TransferManager")]
 class TransferManagerDBusProxy : Object {
-
-    private TransferManager manager;
     private DBusConnection bus;
 
     private int job_idx = 0;
@@ -49,7 +47,7 @@ class TransferManagerDBusProxy : Object {
      *
      * Returns a list of DBus paths of all known transfer jobs
      */
-    public ObjectPath[] list_jobs () {
+    public ObjectPath[] list_jobs () throws Error {
         ObjectPath[] jobs = {};
 
         foreach (var path in this.jobs.keys) {
@@ -108,4 +106,4 @@ class TransferManagerDBusProxy : Object {
     public signal void transfer_failed (string path, string reason);
 
     public signal void transfer_started (string path);
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/transfer-manager.vala b/src/mconnect/transfer-manager.vala
index 675a223..61c9521 100644
--- a/src/mconnect/transfer-manager.vala
+++ b/src/mconnect/transfer-manager.vala
@@ -32,6 +32,7 @@ class TransferManager : Object {
     }
 
     public SocketService ? make_listener (out uint16 listen_port) {
+        listen_port = 0;
         var ss = new SocketService ();
         for (var port = PORT_MIN; port <= PORT_MAX; port++) {
             var added = false;
@@ -52,4 +53,4 @@ class TransferManager : Object {
         warning ("could not find a free port to listen on");
         return null;
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/transfer-proxy.vala b/src/mconnect/transfer-proxy.vala
index 1fdce0e..7c641b5 100644
--- a/src/mconnect/transfer-proxy.vala
+++ b/src/mconnect/transfer-proxy.vala
@@ -34,21 +34,21 @@ class TransferDBusProxy : Object {
     }
 
     [DBus (visible = false)]
-    public void bus_register (DBusConnection conn) {
+    public void bus_register (DBusConnection conn) throws Error {
         debug ("register transfer at path %s", this.object_path.to_string ());
         this.register_id = conn.register_object (this.object_path, this);
     }
 
     [DBus (visible = false)]
-    public void bus_unregister (DBusConnection conn) {
+    public void bus_unregister (DBusConnection conn) throws Error {
         if (this.register_id != 0) {
             debug ("unregister transfer at path %s", this.object_path.to_string ());
             conn.unregister_object (this.register_id);
         }
     }
 
-    public void cancel () {
+    public void cancel () throws Error {
         debug ("cancelling job");
         this.transfer.cancel ();
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/transfer-upload.vala b/src/mconnect/transfer-upload.vala
index 1cc23c8..4867ce9 100644
--- a/src/mconnect/transfer-upload.vala
+++ b/src/mconnect/transfer-upload.vala
@@ -71,7 +71,13 @@ class UploadTransfer : TransferInterface, Object {
     }
 
     private async void handle_client (SocketConnection conn) {
-        var isa = conn.get_remote_address () as InetSocketAddress;
+        InetSocketAddress isa;
+        try {
+            isa = conn.get_remote_address () as InetSocketAddress;
+        } catch (Error e) {
+            warning ("cannot obtain remote address: %s", e.message);
+            return;
+        }
         debug ("client connected: %s:%u", isa.address.to_string (),
                isa.port);
 
@@ -87,7 +93,7 @@ class UploadTransfer : TransferInterface, Object {
                                                    Utils.TlsConnectionMode.SERVER);
         try {
             debug ("attempt TLS handshake");
-            var tls_res = yield this.tls_conn.handshake_async ();
+            yield this.tls_conn.handshake_async ();
 
             debug ("TLS handshake complete");
         } catch (Error e) {
@@ -183,4 +189,4 @@ class UploadTransfer : TransferInterface, Object {
         debug ("cancel called");
         this.cancellable.cancel ();
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnect/utils.vala b/src/mconnect/utils.vala
index ec4bea9..1d7f5cb 100644
--- a/src/mconnect/utils.vala
+++ b/src/mconnect/utils.vala
@@ -70,7 +70,6 @@ namespace Utils {
         option = 3;
         Posix.setsockopt (sock.fd, 6, 6, &option, (Posix.socklen_t) sizeof (int));
 #endif
-
         int option = 10;
         Posix.setsockopt (sock.fd, IPProto.TCP,
                           Posix.TCP_KEEPIDLE,
@@ -109,7 +108,7 @@ namespace Utils {
     TlsConnection make_tls_connection (SocketConnection sock_conn,
                                        TlsCertificate self_cert,
                                        TlsCertificate ? expected_peer = null,
-                                       TlsConnectionMode mode = TlsConnectionMode.SERVER) {
+                                       TlsConnectionMode mode = TlsConnectionMode.SERVER) throws Error {
         TlsConnection tls_conn;
 
         if (mode == TlsConnectionMode.SERVER) {
@@ -183,7 +182,7 @@ namespace Utils {
             return matches;
         } catch (RegexError e) {
             warning ("failed to compile regex: %s", e.message);
-            return null;
+            return {};
         }
     }
 
@@ -198,4 +197,4 @@ namespace Utils {
             critical ("failed to show notification: %s", e.message);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnectctl/device-manager-iface.vala b/src/mconnectctl/device-manager-iface.vala
index 0cf9d04..f388073 100644
--- a/src/mconnectctl/device-manager-iface.vala
+++ b/src/mconnectctl/device-manager-iface.vala
@@ -22,7 +22,7 @@ namespace Mconnect {
 
         public const string OBJECT_PATH = "/org/mconnect/manager";
 
-        public abstract ObjectPath[] ListDevices () throws IOError;
-        public abstract void AllowDevice (string path) throws IOError;
+        public abstract ObjectPath[] ListDevices () throws Error;
+        public abstract void AllowDevice (string path) throws Error;
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnectctl/share-iface.vala b/src/mconnectctl/share-iface.vala
index 59aaf07..5f5f31a 100644
--- a/src/mconnectctl/share-iface.vala
+++ b/src/mconnectctl/share-iface.vala
@@ -21,8 +21,8 @@ namespace Mconnect {
     [DBus (name = "org.mconnect.Device.Share")]
     public interface ShareIface : Object {
 
-        public abstract void share_url (string url) throws IOError;
-        public abstract void share_text (string text) throws IOError;
-        public abstract void share_file (string path) throws IOError;
+        public abstract void share_url (string url) throws Error;
+        public abstract void share_text (string text) throws Error;
+        public abstract void share_file (string path) throws Error;
     }
-}
\ No newline at end of file
+}
diff --git a/src/mconnectctl/telephony-iface.vala b/src/mconnectctl/telephony-iface.vala
index 1b20705..995b727 100644
--- a/src/mconnectctl/telephony-iface.vala
+++ b/src/mconnectctl/telephony-iface.vala
@@ -22,6 +22,6 @@ namespace Mconnect {
     public interface TelephonyIface : Object {
 
         public abstract void send_sms (string number,
-                                       string message) throws IOError;
+                                       string message) throws Error;
     }
-}
\ No newline at end of file
+}
diff --git a/test/mconn-crypt-vala-test.vala b/test/mconn-crypt-vala-test.vala
index 8cf9b7b..86db378 100644
--- a/test/mconn-crypt-vala-test.vala
+++ b/test/mconn-crypt-vala-test.vala
@@ -31,8 +31,7 @@ void test_generate_load () {
     }
 
     try {
-        var cert = new TlsCertificate.from_files (cert_path,
-                                                  key_path);
+        new TlsCertificate.from_files (cert_path, key_path);
     } catch (Error e) {
         warning ("load from files failed: %s", e.message);
         Test.fail ();
@@ -129,4 +128,4 @@ public static void main (string[] args) {
     Test.add_func ("/mconn-crypt-vala/verify-cn", test_custom_cn);
     Test.add_func ("/mconn-crypt-vala/fingerprint", test_fingerprint);
     Test.run ();
-}
\ No newline at end of file
+}