diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 2b0bca1..fe97f86 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -14,6 +14,11 @@ declare(strict_types=1);
 
 namespace Modules\Sales\Controller;
 
+use phpOMS\Message\RequestAbstract;
+use phpOMS\Message\ResponseAbstract;
+use phpOMS\Views\View;
+use phpOMS\Contract\RenderableInterface;
+
 /**
  * Sales class.
  *