diff --git a/IRaCIS.Core.Application/Service/QC/DTO/QCListViewModel.cs b/IRaCIS.Core.Application/Service/QC/DTO/QCListViewModel.cs
index c498eb29..56431170 100644
--- a/IRaCIS.Core.Application/Service/QC/DTO/QCListViewModel.cs
+++ b/IRaCIS.Core.Application/Service/QC/DTO/QCListViewModel.cs
@@ -740,7 +740,7 @@ namespace IRaCIS.Core.Application.Contracts
 
 
 
-        public bool IsBaseline { get; set; }
+        public bool? IsBaseline { get; set; }
 
 
         [DictionaryTranslateAttribute("ExistDisease", nameof(SelftAnalysisExport.IsBaseline), "true")]