diff --git a/IRC.Core.SCP/Service/CStoreSCPService.cs b/IRC.Core.SCP/Service/CStoreSCPService.cs
index eb369a966..fa73a773b 100644
--- a/IRC.Core.SCP/Service/CStoreSCPService.cs
+++ b/IRC.Core.SCP/Service/CStoreSCPService.cs
@@ -256,8 +256,9 @@ namespace IRaCIS.Core.SCP.Service
             string seriesInstanceUid = request.Dataset.GetString(DicomTag.SeriesInstanceUID);
             string sopInstanceUid = request.Dataset.GetString(DicomTag.SOPInstanceUID);
 
-            Guid seriesId = IdentifierHelper.CreateGuid(studyInstanceUid, seriesInstanceUid);
-            Guid instanceId = IdentifierHelper.CreateGuid(studyInstanceUid, seriesInstanceUid, sopInstanceUid);
+            //Guid studyId = IdentifierHelper.CreateGuid(studyInstanceUid, trialId.ToString());
+            Guid seriesId = IdentifierHelper.CreateGuid(studyInstanceUid, seriesInstanceUid, _trialId.ToString());
+            Guid instanceId = IdentifierHelper.CreateGuid(studyInstanceUid, seriesInstanceUid, sopInstanceUid, _trialId.ToString());
 
 
             var ossService = _serviceProvider.GetService<IOSSService>();