diff --git a/webapp/controller/RechargeActivity.trait.php b/webapp/controller/RechargeActivity.trait.php
index 61e0320..92f328a 100644
--- a/webapp/controller/RechargeActivity.trait.php
+++ b/webapp/controller/RechargeActivity.trait.php
@@ -5,7 +5,7 @@ trait RechargeActivity
     protected function getFirstPurchaseActivity($shopid)
     {
         $conf = require('../res/firstchargeactivity@firstchargeactivity.php');
-        return array_key_exists($shopid, $conf) ? $conf[$level] : null;
+        return array_key_exists($shopid, $conf) ? $conf[$shopid] : null;
     }
     public function activityInfo()
     {