diff --git a/Classes/Model/Journal.php b/Classes/Model/Journal.php
index 8378a07bcd63c56f5f07e726847b45ca570e56be..2495a83d8db9fc482def56f8cddb62853e5ba512 100644
--- a/Classes/Model/Journal.php
+++ b/Classes/Model/Journal.php
@@ -158,6 +158,13 @@ class Journal
      */
     protected $keywords = [];
 
+    /**
+     * languages
+     *
+     * @var array<Language>
+     */
+    protected $languages = [];
+
     /**
      * licenses
      *