diff --git a/lib/shop.lib.php b/lib/shop.lib.php
index 2e287244c..f3e59be3c 100644
--- a/lib/shop.lib.php
+++ b/lib/shop.lib.php
@@ -167,11 +167,13 @@ function get_it_stock_qty($it_id)
 }
 
 // 옵션의 재고 (창고재고수량 - 주문대기수량)
-function get_option_stock_qty($it_id, $io_id)
+function get_option_stock_qty($it_id, $io_id, $type)
 {
     global $g4;
 
-    $sql = " select io_stock_qty from {$g4['shop_item_option_table']} where it_id = '$it_id' and io_id = '$io_id' and io_use = '1' ";
+    $sql = " select io_stock_qty
+                from {$g4['shop_item_option_table']}
+                where it_id = '$it_id' and io_id = '$io_id' and io_type = '$type' and io_use = '1' ";
     $row = sql_fetch($sql);
     $jaego = (int)$row['io_stock_qty'];
 
@@ -180,6 +182,7 @@ function get_option_stock_qty($it_id, $io_id)
                from {$g4['shop_cart_table']}
               where it_id = '$it_id'
                 and io_id = '$io_id'
+                and io_type = '$type'
                 and ct_stock_use = 0
                 and ct_status in ('주문', '준비') ";
     $row = sql_fetch($sql);
diff --git a/shop/cartupdate.php b/shop/cartupdate.php
index 2985141e6..2fba3716d 100644
--- a/shop/cartupdate.php
+++ b/shop/cartupdate.php
@@ -197,7 +197,7 @@ else // 장바구니에 담기
         if(!$_POST['io_id'][$i])
             $it_stock_qty = get_it_stock_qty($_POST['it_id']);
         else
-            $it_stock_qty = get_option_stock_qty($_POST['it_id'], $_POST['io_id'][$i]);
+            $it_stock_qty = get_option_stock_qty($_POST['it_id'], $_POST['io_id'][$i], $_POST['io_type'][$i]);
 
         if ($ct_qty + $sum_qty > $it_stock_qty)
         {