diff --git a/src/mconn-crypt.c b/src/mconn-crypt.c
index ab9cf53..a69d800 100644
--- a/src/mconn-crypt.c
+++ b/src/mconn-crypt.c
@@ -145,7 +145,8 @@ static gchar *__mconn_get_public_key_as_pem(MConnCryptPrivate *priv)
     BIO *bm = BIO_new(BIO_s_mem());
 
     /* generate PEM */
-    PEM_write_bio_RSAPublicKey(bm, priv->key);
+    /* PEM_write_bio_RSAPublicKey(bm, priv->key); */
+    PEM_write_bio_RSA_PUBKEY(bm, priv->key);
 
     /* get PEM as text */
     char *oss_pubkey = NULL;