diff --git a/application/WarehouseEShopOrder/WarehouseEShopOrderController.php b/application/WarehouseEShopOrder/WarehouseEShopOrderController.php
index 61b0a8c31..f8c26b18a 100644
--- a/application/WarehouseEShopOrder/WarehouseEShopOrderController.php
+++ b/application/WarehouseEShopOrder/WarehouseEShopOrderController.php
@@ -436,7 +436,7 @@ class WarehouseEShopOrderController extends TTCrud {
             $pat = "/=([0-9A-F]{2})/";
             $cha="'.chr(hexdec(";
             # erase null signs in string
-            $str = preg_replace("/\x00/", "", $str);
+            $str = str_replace("\x00", "", $str);
             # to decode with eval and replace
             eval("\$str='".
                 preg_replace($pat,$cha."'$1')).'",$str)