diff --git a/src/Tag/Hydrator/TagHydratorInterface.php b/src/Tag/Hydrator/TagHydratorInterface.php
index 684f8e48c..4e5095324 100644
--- a/src/Tag/Hydrator/TagHydratorInterface.php
+++ b/src/Tag/Hydrator/TagHydratorInterface.php
@@ -1,6 +1,19 @@
 <?php
 declare(strict_types=1);
 
+/**
+ * Pimcore
+ *
+ * This source file is available under two different licenses:
+ * - GNU General Public License version 3 (GPLv3)
+ * - Pimcore Commercial License (PCL)
+ * Full copyright and license information is available in
+ * LICENSE.md which is distributed with this source code.
+ *
+ *  @copyright  Copyright (c) Pimcore GmbH (http://www.pimcore.org)
+ *  @license    http://www.pimcore.org/license     GPLv3 and PCL
+ */
+
 namespace Pimcore\Bundle\StudioBackendBundle\Tag\Hydrator;
 
 use Pimcore\Bundle\StudioBackendBundle\Tag\Schema\Tag;
@@ -17,7 +30,8 @@ public function hydrateRecursive(ElementTag $tag): Tag;
 
     /**
      * @param array<int, ElementTag> $tags
+     *
      * @return array<int, Tag>
      */
     public function hydrateNestedList(array $tags): array;
-}
\ No newline at end of file
+}
diff --git a/src/Tag/Repository/TagRepositoryInterface.php b/src/Tag/Repository/TagRepositoryInterface.php
index 9744fe955..4d7a983cb 100644
--- a/src/Tag/Repository/TagRepositoryInterface.php
+++ b/src/Tag/Repository/TagRepositoryInterface.php
@@ -1,6 +1,19 @@
 <?php
 declare(strict_types=1);
 
+/**
+ * Pimcore
+ *
+ * This source file is available under two different licenses:
+ * - GNU General Public License version 3 (GPLv3)
+ * - Pimcore Commercial License (PCL)
+ * Full copyright and license information is available in
+ * LICENSE.md which is distributed with this source code.
+ *
+ *  @copyright  Copyright (c) Pimcore GmbH (http://www.pimcore.org)
+ *  @license    http://www.pimcore.org/license     GPLv3 and PCL
+ */
+
 namespace Pimcore\Bundle\StudioBackendBundle\Tag\Repository;
 
 use Pimcore\Bundle\StudioBackendBundle\Tag\Request\CreateTagParameters;
@@ -15,7 +28,10 @@
 interface TagRepositoryInterface
 {
     public function getTagById(int $id): Tag;
+
     public function listTags(TagsParameters $parameters): TagListing;
+
     public function addTag(CreateTagParameters $params): Tag;
+
     public function updateTag(int $id, UpdateTagParameters $params): Tag;
-}
\ No newline at end of file
+}
diff --git a/src/Tag/Service/TagServiceInterface.php b/src/Tag/Service/TagServiceInterface.php
index 740545437..6aace35ff 100644
--- a/src/Tag/Service/TagServiceInterface.php
+++ b/src/Tag/Service/TagServiceInterface.php
@@ -1,6 +1,19 @@
 <?php
 declare(strict_types=1);
 
+/**
+ * Pimcore
+ *
+ * This source file is available under two different licenses:
+ * - GNU General Public License version 3 (GPLv3)
+ * - Pimcore Commercial License (PCL)
+ * Full copyright and license information is available in
+ * LICENSE.md which is distributed with this source code.
+ *
+ *  @copyright  Copyright (c) Pimcore GmbH (http://www.pimcore.org)
+ *  @license    http://www.pimcore.org/license     GPLv3 and PCL
+ */
+
 namespace Pimcore\Bundle\StudioBackendBundle\Tag\Service;
 
 use Pimcore\Bundle\StudioBackendBundle\Tag\Request\CreateTagParameters;
@@ -13,6 +26,8 @@
 interface TagServiceInterface
 {
     public function getTag(int $id): Tag;
+
     public function listTags(TagsParameters $parameters): array;
+
     public function createTag(CreateTagParameters $tag): Tag;
-}
\ No newline at end of file
+}