diff --git a/channels/sip/config_parser.c b/channels/sip/config_parser.c
index 0ab9ed7693..72a7b2c7d0 100644
--- a/channels/sip/config_parser.c
+++ b/channels/sip/config_parser.c
@@ -672,7 +672,9 @@ int sip_parse_host(char *line, int lineno, char **hostname, int *portnum, enum s
 			ast_log(LOG_NOTICE, "'%s' is not a valid port number on line %d of sip.conf. using default.\n", port, lineno);
 			port = NULL;
 		}
-	} else {
+	}
+
+	if (!port) {
 		if (*transport & SIP_TRANSPORT_TLS) {
 			*portnum = STANDARD_TLS_PORT;
 		} else {