diff --git a/System/Crontab/Crontab.php b/System/Crontab/Crontab.php
index 0a417e39..fe76e398 100644
--- a/System/Crontab/Crontab.php
+++ b/System/Crontab/Crontab.php
@@ -207,9 +207,9 @@ abstract class Crontab extends BaseObject
      */
     public function execute(): void
     {
-        \Swoole\Coroutine\go(function ($application) {
-            $application->isRecover($application);
-        }, $this);
+        defer(function () {
+            $this->isRecover();
+        });
         $this->run();
     }
 
diff --git a/System/Crontab/Zookeeper.php b/System/Crontab/Zookeeper.php
index 4ee7320f..1e9426a7 100644
--- a/System/Crontab/Zookeeper.php
+++ b/System/Crontab/Zookeeper.php
@@ -24,7 +24,7 @@ class Zookeeper extends Process
      */
     public function onHandler(\Swoole\Process $process): void
     {
-        /** @var \Snowflake\Crontab\Producer $crontab */
+        /** @var Producer $crontab */
         $crontab = Snowflake::app()->get('crontab');
         $crontab->clearAll();
         if (Snowflake::getPlatform()->isLinux()) {