diff --git a/kiri-engine/FileListen/HotReload.php b/kiri-engine/FileListen/HotReload.php
index d46637e7..2efcd6e1 100644
--- a/kiri-engine/FileListen/HotReload.php
+++ b/kiri-engine/FileListen/HotReload.php
@@ -91,6 +91,7 @@ class HotReload extends Command
      */
     #[NoReturn] public function onSignal($data)
     {
+        var_dump($data);
         $pid = file_get_contents(storage('.swoole.pid'));
         if (!empty($pid) && Process::kill($pid, 0)) {
             Process::kill($pid, SIGTERM);