diff --git a/pkg/apis/networking/validation/validation_test.go b/pkg/apis/networking/validation/validation_test.go
index 45441b0fec5..e56c8f7d556 100644
--- a/pkg/apis/networking/validation/validation_test.go
+++ b/pkg/apis/networking/validation/validation_test.go
@@ -59,7 +59,7 @@ func makePort(proto *api.Protocol, port intstr.IntOrString, endPort int32) netwo
 		Protocol: proto,
 		Port:     nil,
 	}
-	if port != intstr.FromInt(0) {
+	if port != intstr.FromInt(0) && port != intstr.FromString("") && port != intstr.FromString("0") {
 		r.Port = &port
 	}
 	if endPort != 0 {