diff --git a/IRaCIS.Core.Application/Service/Visit/DTO/ClinicalStudySubjects.cs b/IRaCIS.Core.Application/Service/Visit/DTO/ClinicalStudySubjects.cs
index 65333b6cd..093bcf400 100644
--- a/IRaCIS.Core.Application/Service/Visit/DTO/ClinicalStudySubjects.cs
+++ b/IRaCIS.Core.Application/Service/Visit/DTO/ClinicalStudySubjects.cs
@@ -49,7 +49,8 @@ namespace IRaCIS.Application.Contracts
 
         [NotDefault]
         public Guid TrialId { get; set; }
-        [NotDefault]
+
+
         public Guid TrialSiteId { get; set; }
 
         public SubjectStatus Status { get; set; }