diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index eac7e18..6d1162b 100644
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -45,7 +45,7 @@ final class BackendController extends Controller
     {
         $view = new View($this->app->l11nManager, $request, $response);
         $view->setTemplate('/Modules/BudgetManagement/Theme/Backend/budgeting-dashboard');
-        $view->addData('nav', $this->app->moduleManager->get('Navigation')->createNavigationMid(1004601001, $request, $response));
+        $view->data['nav'] = $this->app->moduleManager->get('Navigation')->createNavigationMid(1004601001, $request, $response);
 
         return $view;
     }
diff --git a/Theme/Backend/budgeting-dashboard.tpl.php b/Theme/Backend/budgeting-dashboard.tpl.php
index f21e2a5..8a644e4 100644
--- a/Theme/Backend/budgeting-dashboard.tpl.php
+++ b/Theme/Backend/budgeting-dashboard.tpl.php
@@ -12,4 +12,4 @@
  */
 declare(strict_types=1);
 
-echo $this->getData('nav')->render();
+echo $this->data['nav']->render();