diff --git a/IRaCIS.Core.Application/Service/Management/DTO/UserModel.cs b/IRaCIS.Core.Application/Service/Management/DTO/UserModel.cs
index 4a969d416..2b3116654 100644
--- a/IRaCIS.Core.Application/Service/Management/DTO/UserModel.cs
+++ b/IRaCIS.Core.Application/Service/Management/DTO/UserModel.cs
@@ -248,7 +248,7 @@ namespace IRaCIS.Application.Contracts
 
         public List<UserAddUserType> UserRoleList { get; set; }
 
-        public List<Guid> HospitalGroupIdList { get; set; }
+        public List<Guid> HospitalGroupIdList { get; set; } = new List<Guid>();
 
         public string BaseUrl { get; set; } = string.Empty;
         public string RouteUrl { get; set; } = string.Empty;