diff --git a/app/Http/Controllers/WebsiteController.php b/app/Http/Controllers/WebsiteController.php
index 4bf3122..7d44816 100644
--- a/app/Http/Controllers/WebsiteController.php
+++ b/app/Http/Controllers/WebsiteController.php
@@ -9,7 +9,7 @@ class WebsiteController extends Controller
 {
 
     public function __construct(){
-        $this->setLang($_COOKIE['lang']);
+        $this->setLang($_COOKIE['lang'] ?? 'de');
     }
 
     private function setLang($lang)