diff --git a/ThinkPHP/Library/Org/YeepaySDK/Yeepay.class.php b/ThinkPHP/Library/Org/YeepaySDK/Yeepay.class.php
index 02343786..c30e7877 100644
--- a/ThinkPHP/Library/Org/YeepaySDK/Yeepay.class.php
+++ b/ThinkPHP/Library/Org/YeepaySDK/Yeepay.class.php
@@ -62,7 +62,7 @@ class Yeepay
             "ext" => $data['ext'] ?? '',
         );
 //         var_dump($data);
-        $getUrl = $this->getUrl($cashter, $private_key);
+        $getUrl = $this->getUrl($cashter, $privateKey);
         $getUrl=str_replace("&timestamp","&timestamp",$getUrl);
         $url = "https://cash.yeepay.com/cashier/std?" . $getUrl;
 //         echo $url;