diff --git a/kyaml/kio/testing.go b/kyaml/kio/testing_test.go
similarity index 98%
rename from kyaml/kio/testing.go
rename to kyaml/kio/testing_test.go
index 19b7f1b77..8c456d33c 100644
--- a/kyaml/kio/testing.go
+++ b/kyaml/kio/testing_test.go
@@ -1,7 +1,7 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package kio
+package kio_test
 
 import (
 	"io/ioutil"