diff --git a/backend/open_webui/routers/chats.py b/backend/open_webui/routers/chats.py
index de0bbfd21c..2678ff6d31 100644
--- a/backend/open_webui/routers/chats.py
+++ b/backend/open_webui/routers/chats.py
@@ -991,7 +991,7 @@ async def send_chat_message_event_by_id(
 
     event_emitter = get_event_emitter(
         {
-            'user_id': user.id,
+            'user_id': chat.user_id,
             'chat_id': id,
             'message_id': message_id,
         }