diff --git a/lib/private/LanguageModel/Db/Task.php b/lib/private/LanguageModel/Db/Task.php
index d4e82024da1..8eb71b0ea57 100644
--- a/lib/private/LanguageModel/Db/Task.php
+++ b/lib/private/LanguageModel/Db/Task.php
@@ -1,5 +1,28 @@
 <?php
 
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ */
+
 namespace OC\LanguageModel\Db;
 
 use OCP\AppFramework\Db\Entity;
diff --git a/lib/private/LanguageModel/Db/TaskMapper.php b/lib/private/LanguageModel/Db/TaskMapper.php
index f15187d61d5..9b93ea1990f 100644
--- a/lib/private/LanguageModel/Db/TaskMapper.php
+++ b/lib/private/LanguageModel/Db/TaskMapper.php
@@ -1,5 +1,28 @@
 <?php
 
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ */
+
 namespace OC\LanguageModel\Db;
 
 use OCP\AppFramework\Db\DoesNotExistException;
diff --git a/lib/private/LanguageModel/LanguageModelManager.php b/lib/private/LanguageModel/LanguageModelManager.php
index e331da87b90..3b27fbae5ac 100644
--- a/lib/private/LanguageModel/LanguageModelManager.php
+++ b/lib/private/LanguageModel/LanguageModelManager.php
@@ -1,5 +1,28 @@
 <?php
 
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ */
+
 namespace OC\LanguageModel;
 
 use OC\AppFramework\Bootstrap\Coordinator;