diff --git a/src/Appwrite/Utopia/Response/Model/Rule.php b/src/Appwrite/Utopia/Response/Model/Rule.php
index 35db336799..234377c432 100644
--- a/src/Appwrite/Utopia/Response/Model/Rule.php
+++ b/src/Appwrite/Utopia/Response/Model/Rule.php
@@ -55,6 +55,7 @@ class Rule extends Model
                 'type' => 'string',
                 'description' => 'List of allowed values',
                 'array' => true,
+                'default' => [],
                 'example' => ['5e5ea5c168099'],
             ])
         ;