diff --git a/alipay/Aliverify.php b/alipay/Aliverify.php
index 90a7bd7..faab155 100644
--- a/alipay/Aliverify.php
+++ b/alipay/Aliverify.php
@@ -20,7 +20,7 @@ class Aliverify
     public static function initVerify()
     {
         global $config;
-        $aop = new AopCertClient ();
+        $aop = new \AopCertClient ();
         $aop->gatewayUrl = 'https://openapi.alipay.com/gateway.do';
         $aop->appId = $config['alipay']['app_id'];
         $aop->rsaPrivateKey = $config['alipay']['private_key'];