diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 3d8b46c..d3860f5 100644
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -33,7 +33,7 @@ use phpOMS\Message\Http\RequestStatusCode;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-class BackendController extends Controller
+final class BackendController extends Controller
 {
     /**
      * @param RequestAbstract  $request  Request