diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
index dab0ab565..b74434c1d 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
@@ -63,7 +63,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 
     public class TableQuestionTrial:ReadingTableQuestionTrial
     {
-        public List<GetTrialReadingQuestionOutDto> RelationQuestions { get; set; }
+        public List<GetTrialReadingQuestionOutDto> RelationQuestions { get; set; } = new List<GetTrialReadingQuestionOutDto>();
     }