diff --git a/tests/afrouter/tester.go b/tests/afrouter/tester.go
index f3ba2aa..94972ed 100644
--- a/tests/afrouter/tester.go
+++ b/tests/afrouter/tester.go
@@ -1,3 +1,5 @@
+// +build integration
+
 /*
  * Copyright 2018-present Open Networking Foundation