diff --git a/HttpServer/Events/OnWorkerStart.php b/HttpServer/Events/OnWorkerStart.php
index 54cbd628..776a9592 100644
--- a/HttpServer/Events/OnWorkerStart.php
+++ b/HttpServer/Events/OnWorkerStart.php
@@ -65,6 +65,7 @@ class OnWorkerStart extends Callback
 			return $server->stop($workerId);
 		}
 		while ($server->stats()['coroutine_num'] > 0) {
+			var_dump($server->stats()['coroutine_num']);
 			sleep(1);
 		}
 		return $server->stop($workerId);