diff --git a/lib/Utils/Engines/DeepL.php b/lib/Utils/Engines/DeepL.php
index 386a73f918..320a4eb834 100644
--- a/lib/Utils/Engines/DeepL.php
+++ b/lib/Utils/Engines/DeepL.php
@@ -1,10 +1,13 @@
 <?php
 
 use Engines\DeepL\DeepLApiClient;
+use Engines\DeepL\DeepLApiException;
 
 class Engines_DeepL extends Engines_AbstractEngine
 {
-    private $apiKey;
+    private ?string $apiKey;
+
+    protected $_skipAnalysis = true;
 
     public function setApiKey($apiKey)
     {