diff --git a/src/tcpcheck.c b/src/tcpcheck.c
index 100c727..82f7b02 100644
--- a/src/tcpcheck.c
+++ b/src/tcpcheck.c
@@ -1045,7 +1045,7 @@
 	proto = protocol_by_family(conn->dst->ss_family);
 
 	port = 0;
-	if (!port && connect->port)
+	if (connect->port)
 		port = connect->port;
 	if (!port && connect->port_expr) {
 		struct sample *smp;