diff --git a/WeChat/User.php b/WeChat/User.php
index c362ccd..2156cf7 100644
--- a/WeChat/User.php
+++ b/WeChat/User.php
@@ -49,7 +49,7 @@ class User extends BasicWeChat
      */
     public function getUserInfo($openid, $lang = 'zh_CN')
     {
-        $url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=ACCESS_TOKEN&openid={$openid}&lang=zh_CN";
+        $url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=ACCESS_TOKEN&openid={$openid}&lang={$lang}";
         $this->registerApi($url, __FUNCTION__, func_get_args());
         return $this->httpGetForJson($url);
     }