diff --git a/shop/naverpay/naverpay_order.php b/shop/naverpay/naverpay_order.php
index 538214918..606df06aa 100644
--- a/shop/naverpay/naverpay_order.php
+++ b/shop/naverpay/naverpay_order.php
@@ -149,7 +149,7 @@
     //  재고 검사
     //--------------------------------------------------------
     for($k=0; $k<$opt_count; $k++) {
-        $io_id = preg_replace($pattern, '', $_POST['io_id'][$it_id][$k]);
+        $io_id = preg_replace(G5_OPTION_ID_FILTER, '', trim(stripslashes($_POST['io_id'][$it_id][$k])));
         $io_type = (int) $_POST['io_type'][$it_id][$k];
         $io_value = $_POST['io_value'][$it_id][$k];
        
@@ -171,7 +171,7 @@
     $itm_ids[] = $it_id;
 
     for($k=0; $k<$opt_count; $k++) {
-        $io_id = preg_replace($pattern, '', $_POST['io_id'][$it_id][$k]);
+        $io_id = preg_replace(G5_OPTION_ID_FILTER, '', trim(stripslashes($_POST['io_id'][$it_id][$k])));
         $io_type = (int) $_POST['io_type'][$it_id][$k];
         $io_value = $_POST['io_value'][$it_id][$k];