diff --git a/IRC.Core.SCP/Service/CStoreSCPService.cs b/IRC.Core.SCP/Service/CStoreSCPService.cs
index 1f2dae205..25fa9adcf 100644
--- a/IRC.Core.SCP/Service/CStoreSCPService.cs
+++ b/IRC.Core.SCP/Service/CStoreSCPService.cs
@@ -275,7 +275,7 @@ namespace IRaCIS.Core.SCP.Service
             var _distributedLockProvider = _serviceProvider.GetService<IDistributedLockProvider>();
 
             var storeRelativePath = string.Empty;
-            var ossFolderPath = $"{_trialId}/Image/PACS/{_trialSiteId}{studyInstanceUid}";
+            var ossFolderPath = $"{_trialId}/Image/PACS/{_trialSiteId}/{studyInstanceUid}";
 
 
             long fileSize = 0;