diff --git a/src/sip/request.c b/src/sip/request.c
index cb60a8801..4bf29e7c6 100644
--- a/src/sip/request.c
+++ b/src/sip/request.c
@@ -169,7 +169,7 @@ static int connect_handler(struct sa *src, const struct sa *dst,
 	struct mbuf *cont = NULL;
 	int err;
 
-	if (!sa_isset(src, SA_ALL))
+	if (!sa_isset(src, SA_PORT))
 		return EINVAL;
 
 	mbuf_set_posend(mb, 0, 0);