diff --git a/HttpServer/Events/OnWorkerStart.php b/HttpServer/Events/OnWorkerStart.php
index 001895f2..049dbdbe 100644
--- a/HttpServer/Events/OnWorkerStart.php
+++ b/HttpServer/Events/OnWorkerStart.php
@@ -62,7 +62,7 @@ class OnWorkerStart extends Callback
 			if ($sigkill === false) {
 				return $server->stop($workerId);
 			}
-			while ($server->stats()['coroutine_num'] > 0) {
+			while ($server->stats()['coroutine_num'] > 1) {
 
 				var_dump($server->stats()['coroutine_num']);