diff --git a/src/Shentun.Peis.Application/UserItemTypes/UserItemTypeAppService.cs b/src/Shentun.Peis.Application/UserItemTypes/UserItemTypeAppService.cs
index 430ee25..355d272 100644
--- a/src/Shentun.Peis.Application/UserItemTypes/UserItemTypeAppService.cs
+++ b/src/Shentun.Peis.Application/UserItemTypes/UserItemTypeAppService.cs
@@ -8,6 +8,7 @@ using System.Text;
 using System.Threading.Tasks;
 using Volo.Abp.Domain.Repositories;
 using Volo.Abp;
+using Volo.Abp.Application.Services;
 
 namespace Shentun.Peis.UserItemTypes
 {
@@ -16,7 +17,7 @@ namespace Shentun.Peis.UserItemTypes
     /// </summary>
     [ApiExplorerSettings(GroupName = "Work")]
     [Authorize]
-    public class UserItemTypeAppService
+    public class UserItemTypeAppService : ApplicationService
     {
         private readonly IRepository<UserItemType> _userItemTypeRepository;