--- a/src/gnutls.c     2016-01-24 10:29:58.000000000 +0100
+++ b/src/gnutls.c     2016-02-02 09:32:28.477274274 +0100
@@ -1557,7 +1557,7 @@
   gnutls_certificate_credentials_t x509_cred = NULL;
   gnutls_anon_client_credentials_t anon_cred = NULL;
   Lisp_Object global_init;
-  char const *priority_string_ptr = "NORMAL"; /* default priority string.  */
+  char const *priority_string_ptr = "@SYSTEM"; /* default priority string.  */
   char *c_hostname;
 
   /* Placeholders for the property list elements.  */