diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 7b54fe0..52c8b0f 100644
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -15,6 +15,7 @@ declare(strict_types=1);
 namespace Modules\Comments\Controller;
 
 use phpOMS\Asset\AssetType;
+use phpOMS\Contract\RenderableInterface;
 use phpOMS\Message\RequestAbstract;
 use phpOMS\Message\ResponseAbstract;
 use phpOMS\Views\View;
@@ -51,12 +52,12 @@ final class BackendController extends Controller
      * @param ResponseAbstract $response Response
      * @param mixed            $data     Generic data
      *
-     * @return \Serializable
+     * @return RenderableInterface
      *
      * @since  1.0.0
      * @codeCoverageIgnore
      */
-    public function viewCommentCreate(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
+    public function viewCommentCreate(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Comments/Theme/Backend/comment-create');
@@ -70,12 +71,12 @@ final class BackendController extends Controller
      * @param ResponseAbstract $response Response
      * @param mixed            $data     Generic data
      *
-     * @return \Serializable
+     * @return RenderableInterface
      *
      * @since  1.0.0
      * @codeCoverageIgnore
      */
-    public function viewCommentList(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
+    public function viewCommentList(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Comments/Theme/Backend/comment-list');
diff --git a/Models/CommentListMapper.php b/Models/CommentListMapper.php
index dc8120f..127f329 100644
--- a/Models/CommentListMapper.php
+++ b/Models/CommentListMapper.php
@@ -42,11 +42,6 @@ final class CommentListMapper extends DataMapperAbstract
      *
      * @var array<string, array<string, null|string>>
      * @since 1.0.0
-     */    /**
-     * Has many relation.
-     *
-     * @var array<string, array<string, string>>
-     * @since 1.0.0
      */
     protected static $hasMany = [
         'comments' => [