diff --git a/YD_Event.Application/Event/EventArrangementService.cs b/YD_Event.Application/Event/EventArrangementService.cs
index 2179b6f..9a2b0e3 100644
--- a/YD_Event.Application/Event/EventArrangementService.cs
+++ b/YD_Event.Application/Event/EventArrangementService.cs
@@ -506,7 +506,7 @@ namespace YD_Event.Application.Event;
                             EventProjectId = eventProj.Id,
                             ProjectId = proj.Id,
                             EventProjectGroupId = person.EventProjectGroupId,
-                            RegistrationItemId = person.Id,
+                            RegistrationItemId = person.RegistrationItemId,
                             RegistrationPersonIds = new List<long> { person.Id },
                             TimeRange = $"{proj.GetTotalDurationInSeconds()}''",
                             ProjectName = proj.Name,