diff --git a/kiri-engine/FileListen/HotReload.php b/kiri-engine/FileListen/HotReload.php
index 7ff5664b..7a7b4569 100644
--- a/kiri-engine/FileListen/HotReload.php
+++ b/kiri-engine/FileListen/HotReload.php
@@ -115,8 +115,8 @@ class HotReload extends Command
 	{
 		Kiri::getDi()->get(Logger::class)->warning('change reload');
 		Coroutine::create(function () {
-			$source = proc_open("php " . APP_PATH . "kiri.php start", [], $pipes);
 			$pid = file_get_contents(storage('.swoole.pid'));
+			$source = proc_open("php " . APP_PATH . "kiri.php start", [], $pipes);
 			if (!empty($pid)) {
 				Process::kill($pid, SIGTERM);
 			}