diff --git a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialService.cs b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialService.cs
index 06892de6..e9ec665a 100644
--- a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialService.cs
+++ b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialService.cs
@@ -58,7 +58,7 @@ namespace IRaCIS.Application.Services
                 .WhereIf(!string.IsNullOrWhiteSpace(searchParam.Indication), o => o.Indication.Contains(searchParam.Indication))
                 .WhereIf(!string.IsNullOrEmpty(searchParam.ResearchProgramNo), o => o.ResearchProgramNo.Contains(searchParam.ResearchProgramNo))
                 .WhereIf(!string.IsNullOrWhiteSpace(searchParam.ExperimentName), o => o.ExperimentName.Contains(searchParam.ExperimentName))
-                  .WhereIf(!string.IsNullOrWhiteSpace(searchParam.HeadPI), o => o.ExperimentName.Contains(searchParam.HeadPI))
+                  .WhereIf(!string.IsNullOrWhiteSpace(searchParam.HeadPI), o => o.HeadPI.Contains(searchParam.HeadPI))
                 
                 .WhereIf(searchParam.PhaseId != null, o => o.PhaseId == searchParam.PhaseId)
                 .WhereIf(searchParam.DeclarationTypeId != null, o => o.DeclarationTypeId == searchParam.DeclarationTypeId)