diff --git a/modules/util/compare_test.go b/modules/util/compare_test.go
index 98455466a6..f8972f4da5 100644
--- a/modules/util/compare_test.go
+++ b/modules/util/compare_test.go
@@ -1,3 +1,7 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
 package util
 
 import (