diff --git a/codegenerator/openapi/designate_schemas.py b/codegenerator/openapi/designate_schemas.py
index 240fc61..9fcc072 100644
--- a/codegenerator/openapi/designate_schemas.py
+++ b/codegenerator/openapi/designate_schemas.py
@@ -451,7 +451,7 @@ RECORDSET_SCHEMA: dict[str, Any] = {
         },
         "zone_name": {
             "type": "string",
-            "format": "uuid",
+            "readOnly": True,
             "description": "The name of the zone that contains this recordset",
         },
         "type": {