diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index 1a18528b..ea54f598 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -646,7 +646,7 @@ class MlogbwViewSet(CustomModelViewSet):
                     Mlogbw.objects.get_or_create(mlogb=mlogb_to, wpr=ins.wpr, defaults={"number": ins.number})
                 elif route.process.mtype == Process.PRO_DIV:
                     for i in range(route.div_number):
-                        Mlogbw.objects.get_or_create(mlogb=mlogb_to, defaults={"number": ins.number + i})
+                        Mlogbw.objects.get_or_create(mlogb=mlogb_to, defaults={"number": f'{ins.number}-{i+1}'})
                 self.cal_mlogb_count(mlogb_to)
 
     @transaction.atomic