diff --git a/apps/rpm/services.py b/apps/rpm/services.py
index b18b09ce..261fd96d 100644
--- a/apps/rpm/services.py
+++ b/apps/rpm/services.py
@@ -13,7 +13,7 @@ def bind_rpj(ticket: Ticket, transition: Transition, new_ticket_data: dict):
     # ticket.save()
     rpj.ticket = ticket
     rpj.save()
-    ticket.belong_dept = rpj.dept
+    ticket.belong_dept = rpj.belong_dept
     ticket.save()