diff --git a/webapp/services/callback/GameItemMarketBuyOk.php b/webapp/services/callback/GameItemMarketBuyOk.php
index 5d600b4d..24d9e060 100644
--- a/webapp/services/callback/GameItemMarketBuyOk.php
+++ b/webapp/services/callback/GameItemMarketBuyOk.php
@@ -70,6 +70,7 @@ class GameItemMarketBuyOk {
                 array('account_id' => $accountId),
                 $event);
         }
+        $currencyName = $orderDb['currency_name'];
         $itemService = new ShopAddItemService();
         $itemService->addItemByAccountId($accountId, $itemId, $itemNum);
         myself()->_addLogEx($accountId, "mallBuyOk", "end", array(