diff --git a/tests/src/Core/Hooks/Util/HookFileManagerTest.php b/tests/src/Core/Hooks/Util/HookFileManagerTest.php
index 746bfa7ca3..1cc4b5c900 100644
--- a/tests/src/Core/Hooks/Util/HookFileManagerTest.php
+++ b/tests/src/Core/Hooks/Util/HookFileManagerTest.php
@@ -1,4 +1,23 @@
 <?php
+/**
+ * @copyright Copyright (C) 2010-2023, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
 
 namespace Friendica\Test\src\Core\Hooks\Util;