diff --git a/src/gnutls.c b/src/gnutls.c

index d363fea..981f127 100644

--- a/src/gnutls.c

+++ b/src/gnutls.c

@@ -776,7 +776,7 @@ one trustfile (usually a CA bundle).  */)

   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.  */

   unsigned int peer_verification;

   char* c_hostname;