diff --git a/lib/classes/I18NString.php b/lib/classes/I18NString.php
index 353062eebd0f8dd155fb14929f5efbae781db3cf..63e275e29c4e4eb91bc67c3ec57a8c4b7ca1f5e8 100644
--- a/lib/classes/I18NString.php
+++ b/lib/classes/I18NString.php
@@ -184,7 +184,7 @@ class I18NString implements JsonSerializable
      */
     public function translation($lang)
     {
-        return $this->toArray()[$lang] ?? '';
+        return $this->toArray()[$lang] ?? null;
     }
 
     /**