diff --git a/webapp/classes/RechargeActivity.php b/webapp/classes/RechargeActivity.php
index e09f27f..f8ff9db 100644
--- a/webapp/classes/RechargeActivity.php
+++ b/webapp/classes/RechargeActivity.php
@@ -58,8 +58,7 @@ class RechargeActivity
             );
         } else {
             $conn->execScript(
-                'INSERT recharge(accountid,activity,create_time,modify_time) VALUES(:accountid,:activity, :create_time, :modify_time) ' .
-                    ' WHERE accountid=:accountid;',
+                'INSERT recharge(accountid,activity,create_time,modify_time) VALUES(:accountid,:activity, :create_time, :modify_time); ',
                 array(
                     ':accountid' => $account_id,
                     ':activity' => json_encode($activity),