diff --git a/libs/sofia-sip/libsofia-sip-ua/nua/nua_register.c b/libs/sofia-sip/libsofia-sip-ua/nua/nua_register.c
index ab18e28be6..df375b54b7 100644
--- a/libs/sofia-sip/libsofia-sip-ua/nua/nua_register.c
+++ b/libs/sofia-sip/libsofia-sip-ua/nua/nua_register.c
@@ -2068,9 +2068,10 @@ sip_contact_t *nua_handle_contact_by_via(nua_handle_t *nh,
 
     /* Make transport parameter lowercase */
     if (strlen(transport) < (sizeof _transport)) {
-      char *s = strcpy(_transport, transport);
+      char *s;
       short c;
 
+      strcpy(_transport, transport);
       for (s = _transport; (c = *s) && c != ';'; s++)
 	if (isupper(c))
 	  *s = tolower(c);