diff --git a/Controller.php b/Controller.php
index 91f009d..88b61ff 100644
--- a/Controller.php
+++ b/Controller.php
@@ -29,6 +29,7 @@ use phpOMS\Module\ModuleAbstract;
 use phpOMS\Module\WebInterface;
 use phpOMS\System\MimeType;
 use phpOMS\Views\View;
+use phpOMS\Message\Http\RequestStatusCode;
 
 /**
  * Media class.