diff --git a/src/Register.php b/src/Register.php
index 15f710d..27d7914 100644
--- a/src/Register.php
+++ b/src/Register.php
@@ -3,7 +3,7 @@
 
 class Register extends \GatewayWorker\Register
 {
-    public function __construct($config)
+    public function __construct($config = [])
     {
         $propertyMap = [
             'secretKey',
@@ -39,4 +39,4 @@ public function onWorkerstart()
         $this->reusePort = false;
     }
 
-}
\ No newline at end of file
+}