diff --git a/HttpServer/Events/OnWorkerStart.php b/HttpServer/Events/OnWorkerStart.php
index 50c9ebf1..25f9e2c4 100644
--- a/HttpServer/Events/OnWorkerStart.php
+++ b/HttpServer/Events/OnWorkerStart.php
@@ -93,6 +93,8 @@ class OnWorkerStart extends Callback
 	{
 		$ret = Coroutine::waitSignal($this->signal, -1);
 		if ($ret === true) {
+			var_dump(Coroutine::waitPid($server->worker_pid, 1));
+
 			$this->ticker();
 		}
 		return $server->stop();