diff --git a/HttpServer/Events/OnWorkerStart.php b/HttpServer/Events/OnWorkerStart.php
index 67bd8a3c..ad982874 100644
--- a/HttpServer/Events/OnWorkerStart.php
+++ b/HttpServer/Events/OnWorkerStart.php
@@ -45,6 +45,10 @@ class OnWorkerStart extends Callback
 		}
 		$this->debug(sprintf('%s #%d Pid:%d start.', ucfirst(env('environmental')), $worker_id, $server->worker_pid));
 		Coroutine\go([$this, 'onSignal'], $server, $worker_id);
+		Coroutine\go(function (Server $server) {
+			$result = Coroutine::waitPid($server->worker_pid, -1);
+			var_dump($result);
+		}, $server);
 	}
 
 
@@ -96,7 +100,7 @@ class OnWorkerStart extends Callback
 		$ret = Coroutine::waitSignal($this->signal, -1);
 		if ($ret === true) {
 
-			var_dump(Coroutine::waitPid($worker_id, 1));
+			var_dump(Coroutine::waitPid($server->worker_pid, -1));
 
 			$this->ticker();
 		}