diff --git a/http-server/ServerCommand.php b/http-server/ServerCommand.php
index 55e92f1d..758f1073 100644
--- a/http-server/ServerCommand.php
+++ b/http-server/ServerCommand.php
@@ -90,7 +90,7 @@ class ServerCommand extends Command
         }
         Coroutine::set([
             'hook_flags'            => SWOOLE_HOOK_ALL ^ SWOOLE_HOOK_BLOCKING_FUNCTION,
-            'enable_deadlock_check' => false,
+            'enable_deadlock_check' => TRUE,
             'exit_condition'        => function () {
                 return Coroutine::stats()['coroutine_num'] === 0;
             }