diff --git a/HttpServer/Events/OnWorkerStart.php b/HttpServer/Events/OnWorkerStart.php
index 025bab25..34a1e230 100644
--- a/HttpServer/Events/OnWorkerStart.php
+++ b/HttpServer/Events/OnWorkerStart.php
@@ -95,6 +95,7 @@ class OnWorkerStart extends Callback
             $ret = Coroutine::waitSignal($this->signal, -1);
             if ($ret) {
                 while (Snowflake::app()->isRun()) {
+                    var_dump(Snowflake::app()->isRun());
                     sleep(1);
                 }
             }