diff --git a/api/controllers/console/explore/message.py b/api/controllers/console/explore/message.py
index c3488de299..690297048e 100644
--- a/api/controllers/console/explore/message.py
+++ b/api/controllers/console/explore/message.py
@@ -69,7 +69,7 @@ class MessageFeedbackApi(InstalledAppResource):
         args = parser.parse_args()
 
         try:
-            MessageService.create_feedback(app_model, message_id, current_user, args["rating"], args["content"])
+            MessageService.create_feedback(app_model, message_id, current_user, args.get("rating"), args.get("content"))
         except services.errors.message.MessageNotExistsError:
             raise NotFound("Message Not Exists.")
 
diff --git a/api/controllers/service_api/app/message.py b/api/controllers/service_api/app/message.py
index 522c7509b9..bed89a99a5 100644
--- a/api/controllers/service_api/app/message.py
+++ b/api/controllers/service_api/app/message.py
@@ -108,7 +108,7 @@ class MessageFeedbackApi(Resource):
         args = parser.parse_args()
 
         try:
-            MessageService.create_feedback(app_model, message_id, end_user, args["rating"], args["content"])
+            MessageService.create_feedback(app_model, message_id, end_user, args.get("rating"), args.get("content"))
         except services.errors.message.MessageNotExistsError:
             raise NotFound("Message Not Exists.")
 
diff --git a/api/controllers/web/message.py b/api/controllers/web/message.py
index 0f47e64370..b636e6be62 100644
--- a/api/controllers/web/message.py
+++ b/api/controllers/web/message.py
@@ -108,7 +108,7 @@ class MessageFeedbackApi(WebApiResource):
         args = parser.parse_args()
 
         try:
-            MessageService.create_feedback(app_model, message_id, end_user, args["rating"], args["content"])
+            MessageService.create_feedback(app_model, message_id, end_user, args.get("rating"), args.get("content"))
         except services.errors.message.MessageNotExistsError:
             raise NotFound("Message Not Exists.")