diff --git a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialConfigService.cs b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialConfigService.cs
index de3b96352..da15cbe2c 100644
--- a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialConfigService.cs
+++ b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialConfigService.cs
@@ -454,7 +454,7 @@ namespace IRaCIS.Core.Application
 
             if (inDto.IsArbitrationReading)
             {
-                arbitration = inDto.IsGlobalReading ? ArbitrationRule.Reading : ArbitrationRule.Visit;
+                arbitration = inDto.IsReadingPeriod ? ArbitrationRule.Reading : ArbitrationRule.Visit;
             }
 
             await _readingQuestionCriterionTrialRepository.UpdatePartialFromQueryAsync(inDto.TrialReadingCriterionId, x => new ReadingQuestionCriterionTrial()