diff --git a/comission.php b/comission.php
index 98de705..b60a6d4 100644
--- a/comission.php
+++ b/comission.php
@@ -18,9 +18,9 @@ if ($user['battle'] != 0) {
 
 $get = urldecode(filter_input(INPUT_SERVER, 'QUERY_STRING'));
 
-$itemCost = filter_input(INPUT_GET, $_GET['kredit'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
-$itemId = filter_input(INPUT_GET, $_GET['n'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
-$returningItemId = filter_input(INPUT_GET, $_GET['back'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
+$itemCost = (int)filter_input(INPUT_GET, $_GET['kredit'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
+$itemId = (int)filter_input(INPUT_GET, $_GET['n'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
+$returningItemId = (int)filter_input(INPUT_GET, $_GET['back'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
 
 if ($itemCost && $itemId) {
     $commission = ceil($itemCost / 10); # 10% от суммы с округлением вверх.