diff --git a/extensions/feishu/src/reply-dispatcher.test.ts b/extensions/feishu/src/reply-dispatcher.test.ts
index c7b2f9af28b..b97f5ae1397 100644
--- a/extensions/feishu/src/reply-dispatcher.test.ts
+++ b/extensions/feishu/src/reply-dispatcher.test.ts
@@ -41,6 +41,7 @@ vi.mock("./streaming-card.js", async () => {
         this.active = false;
       });
       isActive = vi.fn(() => this.active);
+      getMessageId = vi.fn(() => undefined);
 
       constructor() {
         streamingInstances.push(this);