diff --git a/app/config/collections.php b/app/config/collections.php
index 89236c6844..9170b07573 100644
--- a/app/config/collections.php
+++ b/app/config/collections.php
@@ -827,6 +827,7 @@ $collections = [
                 'type' => Database::SYSTEM_VAR_TYPE_TEXT,
                 'default' => '',
                 'required' => false,
+                'filter' => ['encrypt'],
             ],
         ],
     ],