diff --git a/shop.php b/shop.php
index 4be9463..2815fbd 100644
--- a/shop.php
+++ b/shop.php
@@ -13,7 +13,7 @@ if (!empty($_GET['otdel'])) {
     if ($_GET['otdel'] !== 'sale') {
         Shop::$current->categoryType = $_GET['otdel'];
     } else {
-        Shop::$current->categoryType = -1;
+        Shop::$current->categoryType = Shop::CATEGORY_SALE_ITEMS;
     }
 }