diff --git a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialConfigService.cs b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialConfigService.cs
index 364740003..4d82dd1a0 100644
--- a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialConfigService.cs
+++ b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialConfigService.cs
@@ -147,7 +147,10 @@ namespace IRaCIS.Core.Application
 
             GetTrialReadingInfoOutDto trialInfo= await _readingQuestionCriterionTrialRepository.Where(x=>x.Id==inDto.TrialReadingCriterionId).ProjectTo<GetTrialReadingInfoOutDto>(_mapper.ConfigurationProvider).FirstNotNullAsync();
 
-        
+            if (trialInfo.ReadingTool == null)
+            {
+                trialInfo.ReadingTool = ReadingTool.Dicom;
+            }
 
             return trialInfo;
         }