diff --git a/webapp/controller/PayController.class.php b/webapp/controller/PayController.class.php
index 3e7a904..93e06bd 100644
--- a/webapp/controller/PayController.class.php
+++ b/webapp/controller/PayController.class.php
@@ -63,7 +63,7 @@ class PayController {
         }
         $openid = 'ouPbc4gvHQ_eRRtPKb6BhHGpheB8';
         if (isset($_REQUEST['account_id'])) {
-            $openid = phpcommon\extraceOpenId($_REQUEST['account_id']);
+            $openid = phpcommon\extractOpenId($_REQUEST['account_id']);
         }
         $orderid = $this->getOrderId();
         if (empty($orderid)) {