diff --git a/EProcess/Adapter/ChildProcess.php b/EProcess/Adapter/ChildProcess.php
index 27be06e..c8a24e4 100644
--- a/EProcess/Adapter/ChildProcess.php
+++ b/EProcess/Adapter/ChildProcess.php
@@ -46,7 +46,6 @@ class ChildProcess extends BaseAdapter
 }
 PHP;
 
-    private $loop;
     private $process;
 
     public function create($class, array $data = [])