diff --git a/app/Http/Controllers/Orders/DownloadOrderQrPdfController.php b/app/Http/Controllers/Orders/DownloadOrderQrPdfController.php
index f5f7181f..b573c52a 100644
--- a/app/Http/Controllers/Orders/DownloadOrderQrPdfController.php
+++ b/app/Http/Controllers/Orders/DownloadOrderQrPdfController.php
@@ -39,7 +39,7 @@ class DownloadOrderQrPdfController
         }
 
         if($warehouse->reference === WarehouseReferences::YD_GUANG_ZHOU){
-            $warehousePrefix = 'YD';
+            $warehousePrefix = 'YD/';
 
             if(strtolower($deliveryAddress->state->name) === 'sabah' || strtolower($deliveryAddress->state->name) === 'labuan') {
                 $warehousePrefix = 'KK/';