diff --git a/extensions/feishu/src/test-support/lifecycle-test-support.ts b/extensions/feishu/src/test-support/lifecycle-test-support.ts
index cd9d29a9f0d..60ac6360126 100644
--- a/extensions/feishu/src/test-support/lifecycle-test-support.ts
+++ b/extensions/feishu/src/test-support/lifecycle-test-support.ts
@@ -386,7 +386,7 @@ export async function expectFeishuReplyPipelineDedupedAfterPostSendFailure(param
           expect(params.dispatchReplyFromConfigMock).toHaveBeenCalledTimes(1);
           expect(params.runtimeErrorMock).toHaveBeenCalledTimes(1);
         },
-        { timeout: waitTimeoutMs },
+        waitTimeoutMs == null ? undefined : { timeout: waitTimeoutMs },
       ),
     waitForSecond: () =>
       vi.waitFor(
@@ -394,7 +394,7 @@ export async function expectFeishuReplyPipelineDedupedAfterPostSendFailure(param
           expect(params.dispatchReplyFromConfigMock).toHaveBeenCalledTimes(1);
           expect(params.runtimeErrorMock).toHaveBeenCalledTimes(1);
         },
-        { timeout: waitTimeoutMs },
+        waitTimeoutMs == null ? undefined : { timeout: waitTimeoutMs },
       ),
   });
 }