diff --git a/libs/sofia-sip/libsofia-sip-ua/tport/tport_type_tls.c b/libs/sofia-sip/libsofia-sip-ua/tport/tport_type_tls.c
index 6d83e2ef7a..9dc1bdaf50 100644
--- a/libs/sofia-sip/libsofia-sip-ua/tport/tport_type_tls.c
+++ b/libs/sofia-sip/libsofia-sip-ua/tport/tport_type_tls.c
@@ -608,7 +608,7 @@ tport_t *tport_tls_connect(tport_primary_t *pri,
   int err;
   unsigned errlevel = 3;
   char buf[TPORT_HOSTPORTSIZE];
-  char const *what="";
+  char const *what=;
 
   what = "su_socket";
   s = su_socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);