diff --git a/HttpServer/Events/OnWorkerStart.php b/HttpServer/Events/OnWorkerStart.php
index 0678ed31..67bd8a3c 100644
--- a/HttpServer/Events/OnWorkerStart.php
+++ b/HttpServer/Events/OnWorkerStart.php
@@ -95,6 +95,9 @@ class OnWorkerStart extends Callback
 	{
 		$ret = Coroutine::waitSignal($this->signal, -1);
 		if ($ret === true) {
+
+			var_dump(Coroutine::waitPid($worker_id, 1));
+
 			$this->ticker();
 		}
 		return $server->stop();