diff --git a/src/Wechat/Work/Miniprogram.php b/src/Wechat/Work/Miniprogram.php
index be7a6e4..cf90002 100644
--- a/src/Wechat/Work/Miniprogram.php
+++ b/src/Wechat/Work/Miniprogram.php
@@ -16,7 +16,7 @@ class Miniprogram
         $this->work = $work;
     }
 
-    public function code2Session($code,$type = 'authorization_code')
+    public function code2Session($code, $type = 'authorization_code')
     {
         $request = $this->work->transformForGetRequest('miniprogram/jscode2session', [
             'js_code' => $code,