diff --git a/server/src/__tests__/fatal-error-handler.test.ts b/server/src/__tests__/fatal-error-handler.test.ts
index 71a2ca153ac..47eb4e6aa53 100644
Binary files a/server/src/__tests__/fatal-error-handler.test.ts and b/server/src/__tests__/fatal-error-handler.test.ts differ
diff --git a/server/src/fatal-error-handler.ts b/server/src/fatal-error-handler.ts
index 16aad64e00c..0c9cbf20cab 100644
--- a/server/src/fatal-error-handler.ts
+++ b/server/src/fatal-error-handler.ts
@@ -130,10 +130,10 @@ function flushWithTimeout(client: TelemetryClient, timeoutMs: number): Promise<v
     const finish = () => {
       if (settled) return;
       settled = true;
+      clearTimeout(timer);
       resolve();
     };
     const timer = setTimeout(finish, timeoutMs);
-    timer.unref?.();
     client.flush().then(finish, finish);
   });
 }