diff --git a/IRaCIS.Core.Application/Service/Reading/MedicalAudit/ReadingMedicalReviewService.cs b/IRaCIS.Core.Application/Service/Reading/MedicalAudit/ReadingMedicalReviewService.cs
index e750da711..fa1e5df67 100644
--- a/IRaCIS.Core.Application/Service/Reading/MedicalAudit/ReadingMedicalReviewService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/MedicalAudit/ReadingMedicalReviewService.cs
@@ -301,7 +301,7 @@ namespace IRaCIS.Core.Application.Service
                     join taskAnswer in _readingTaskQuestionAnswerRepository.AsQueryable() on new { TaskId= global.TaskId, QuestionId=global.QuestionId??default(Guid)  } equals new { TaskId=taskAnswer.VisitTaskId, QuestionId=taskAnswer.ReadingQuestionTrialId  } 
                     select new JudgeQuestionAnswerInfo()
                     {
-                        Answer = global.Answer==string.Empty? taskAnswer.Answer: global.Answer,
+                        Answer = global.Answer.IsNullOrEmpty()? taskAnswer.Answer: global.Answer,
                         VisitTaskId = global.GlobalTaskId,
                         DictionaryCode = global.TrialReadingQuestion.DictionaryCode,
                         ShowOrder = global.TrialReadingQuestion.ShowOrder,