diff --git a/src/services/chat.ts b/src/services/chat.ts
index 8e33174856eb..8e5e63b3b785 100644
--- a/src/services/chat.ts
+++ b/src/services/chat.ts
@@ -322,7 +322,7 @@ class ChatService {
       signal,
       // use smoothing when enable client fetch
       // https://github.com/lobehub/lobe-chat/issues/3800
-      smoothing: providerConfig?.smoothing,
+      smoothing: providerConfig?.smoothing || enableFetchOnClient,
     });
   };