diff --git a/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/UnionStudyViewDodel.cs b/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/UnionStudyViewDodel.cs
index ef8e2f10a..dbb274b34 100644
--- a/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/UnionStudyViewDodel.cs
+++ b/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/UnionStudyViewDodel.cs
@@ -382,6 +382,7 @@ namespace IRaCIS.Core.Application.Contracts
         [NotDefault]
         public Guid TrialReadingCriterionId { get; set; }
 
+        [NotDefault]
         public string SubjectCode { get; set; }
     }
 
@@ -394,6 +395,7 @@ namespace IRaCIS.Core.Application.Contracts
         [NotDefault]
         public Guid TrialReadingCriterionId { get; set; }
 
+        [NotDefault]
         public string SubjectCode { get; set; }
 
         public List<Guid> SubjectVisitIdList { get; set; }