diff --git a/backend/app/api/api_v1/routers/platform.py b/backend/app/api/api_v1/routers/platform.py
index 13c9f39..b064e31 100644
--- a/backend/app/api/api_v1/routers/platform.py
+++ b/backend/app/api/api_v1/routers/platform.py
@@ -302,7 +302,8 @@ async def domain_edit(
 
 
 @r.delete(
-    "/domain/{id}"
+    "/domain/{id}",
+    response_model_exclude_none=True,
 )
 async def domain_delete(
     request: Request,
@@ -351,7 +352,8 @@ async def create_userdomain(
         raise APIException('platform:domain',request.url._url,f"Error occurred while add user({userid}) domain:",e)
 
 @r.delete(
-    "/domain/{domainid}/{userid}"
+    "/domain/{domainid}/{userid}",
+    response_model_exclude_none=True,
 )
 async def userdomain_delete(
     request: Request,