diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 0dc6069c8d..30177d1951 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -17897,7 +17897,7 @@ static void check_via(struct sip_pvt *p, struct sip_request *req)
 		if (ast_sockaddr_resolve_first(&tmp, c, 0)) {
 			ast_log(LOG_WARNING, "Could not resolve socket address for '%s'\n", c);
 			port = STANDARD_SIP_PORT;
-		} else if (!(port = ast_sockaddr_port(&tmp)) {
+		} else if (!(port = ast_sockaddr_port(&tmp))) {
 			port = STANDARD_SIP_PORT;
 			ast_sockaddr_set_port(&tmp, port);
 		}