diff --git a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-messages/ai-chat-messages.ts b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-messages/ai-chat-messages.ts
index 5e596e617..41c531141 100644
--- a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-messages/ai-chat-messages.ts
+++ b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-messages/ai-chat-messages.ts
@@ -437,6 +437,7 @@ export class AIChatMessages extends WithDisposable(ShadowlessElement) {
       const last = messages[messages.length - 1];
       if ('content' in last) {
         last.content = '';
+        last.streamObjects = [];
         last.createdAt = new Date().toISOString();
       }
       this.updateContext({
diff --git a/packages/frontend/core/src/blocksuite/ai/peek-view/chat-block-peek-view.ts b/packages/frontend/core/src/blocksuite/ai/peek-view/chat-block-peek-view.ts
index 9637c9fbf..471ff6689 100644
--- a/packages/frontend/core/src/blocksuite/ai/peek-view/chat-block-peek-view.ts
+++ b/packages/frontend/core/src/blocksuite/ai/peek-view/chat-block-peek-view.ts
@@ -372,7 +372,7 @@ export class AIChatBlockPeekView extends LitElement {
       const last = messages[messages.length - 1];
       if ('content' in last) {
         last.content = '';
-        last.id = '';
+        last.streamObjects = [];
         last.createdAt = new Date().toISOString();
       }
       this.updateContext({