diff --git a/src/Form/CollectionTypeExtension.php b/src/Form/Extension/CollectionTypeExtension.php
similarity index 99%
rename from src/Form/CollectionTypeExtension.php
rename to src/Form/Extension/CollectionTypeExtension.php
index 4fa93852..52cd4186 100644
--- a/src/Form/CollectionTypeExtension.php
+++ b/src/Form/Extension/CollectionTypeExtension.php
@@ -39,7 +39,7 @@ declare(strict_types=1);
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-namespace App\Form;
+namespace App\Form\Extension;
 
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
diff --git a/src/Form/PasswordTypeExtension.php b/src/Form/Extension/PasswordTypeExtension.php
similarity index 67%
rename from src/Form/PasswordTypeExtension.php
rename to src/Form/Extension/PasswordTypeExtension.php
index 64711c53..cc0486b0 100644
--- a/src/Form/PasswordTypeExtension.php
+++ b/src/Form/Extension/PasswordTypeExtension.php
@@ -1,4 +1,22 @@
 <?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2025 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  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/>.
+ */
 
 declare(strict_types=1);
 
@@ -20,7 +38,7 @@ declare(strict_types=1);
  *  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 App\Form;
+namespace App\Form\Extension;
 
 use Symfony\Component\Form\AbstractTypeExtension;
 use Symfony\Component\Form\Extension\Core\Type\PasswordType;
diff --git a/src/Form/SelectTypeOrderExtension.php b/src/Form/Extension/SelectTypeOrderExtension.php
similarity index 98%
rename from src/Form/SelectTypeOrderExtension.php
rename to src/Form/Extension/SelectTypeOrderExtension.php
index 7115d763..e8e9a93f 100644
--- a/src/Form/SelectTypeOrderExtension.php
+++ b/src/Form/Extension/SelectTypeOrderExtension.php
@@ -21,7 +21,7 @@
 declare(strict_types=1);
 
 
-namespace App\Form;
+namespace App\Form\Extension;
 
 use Symfony\Component\Form\AbstractTypeExtension;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
@@ -57,4 +57,4 @@ class SelectTypeOrderExtension extends AbstractTypeExtension
             $view->vars['attr']['data-ordered-value'] = json_encode($form->getViewData(), JSON_THROW_ON_ERROR);
         }
     }
-}
\ No newline at end of file
+}