diff --git a/Abstracts/TraitServer.php b/Abstracts/TraitServer.php
index 28b97ab..c7f4d0c 100644
--- a/Abstracts/TraitServer.php
+++ b/Abstracts/TraitServer.php
@@ -142,9 +142,10 @@ trait TraitServer
      */
     private function onPcntlSignal($signal, $callback): void
     {
-        Process::signal((int)$signal, static function (int $signo) use ($callback): void {
-            call_user_func($callback, $signo, []);
-        });
+        if (function_exists('pcntl_async_signals')) {
+            pcntl_async_signals(true);
+        }
+        \pcntl_signal($signal, $callback);
     }