diff --git a/DOAN.Service/Mobile/IService/IPreparationTaskService.cs b/DOAN.Service/Mobile/IService/IPreparationTaskService.cs
index a18b010..48c7258 100644
--- a/DOAN.Service/Mobile/IService/IPreparationTaskService.cs
+++ b/DOAN.Service/Mobile/IService/IPreparationTaskService.cs
@@ -17,8 +17,8 @@ namespace DOAN.Service.Mobile.IService
 
         List<ProWorkorder> GetWorkOrderList(DateTime HandleDate, string route_code);
 
-        List<BaseMaterialList> ParseMaterialCode(string materialCode);
-        MmPreparationTask GetWorkorderTask(string workorder);
+        BaseMaterialList ParseMaterialCode(string materialCode);
+        List<MmPreparationTask> GetWorkorderTask(string workorder);