diff --git a/library/error.c b/library/error.c
index 23f4a85..333a8f8 100644
--- a/library/error.c
+++ b/library/error.c
@@ -373,6 +373,8 @@
             snprintf( buf, buflen, "SSL - Processing of the NewSessionTicket handshake message failed" );
         if( use_ret == -(POLARSSL_ERR_SSL_SESSION_TICKET_EXPIRED) )
             snprintf( buf, buflen, "SSL - Session ticket has expired" );
+        if( use_ret == -(POLARSSL_ERR_SSL_PK_TYPE_MISMATCH) )
+            snprintf( buf, buflen, "SSL - Public key type mismatch (eg, asked for RSA key exchange and presented EC key)" );
 #endif /* POLARSSL_SSL_TLS_C */
 
 #if defined(POLARSSL_X509_PARSE_C)