diff --git a/osbase/net/dns/kubernetes/handler_test.go b/osbase/net/dns/kubernetes/handler_test.go
index 76bd32d..9b628fd 100644
--- a/osbase/net/dns/kubernetes/handler_test.go
+++ b/osbase/net/dns/kubernetes/handler_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package kubernetes
 
 import (