diff --git a/src/Appwrite/GraphQL/Types/Mapper.php b/src/Appwrite/GraphQL/Types/Mapper.php
index 36b246b28b..d8f1d7da09 100644
--- a/src/Appwrite/GraphQL/Types/Mapper.php
+++ b/src/Appwrite/GraphQL/Types/Mapper.php
@@ -50,6 +50,7 @@ class Mapper
         $defaults = [
             'boolean' => Type::boolean(),
             'string' => Type::string(),
+            'payload' => Type::string(),
             'integer' => Type::int(),
             'double' => Type::float(),
             'datetime' => Type::string(),