diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 6ee2d5f..9ccce11 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -36,13 +36,13 @@ final class BackendController extends Controller
      *
      * @param RequestAbstract  $request  Request
      * @param ResponseAbstract $response Response
-     * @param mixed            $data     Generic data
+     * @param array            $data     Generic data
      *
      * @return RenderableInterface Response can be rendered
      *
      * @since 1.0.0
      */
-    public function viewDashboard(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : RenderableInterface
+    public function viewDashboard(RequestAbstract $request, ResponseAbstract $response, array $data = []) : RenderableInterface
     {
         $head  = $response->data['Content']->head;
         $nonce = $this->app->appSettings->getOption('script-nonce');