diff --git a/apps/wf/services.py b/apps/wf/services.py
index 34bcf126..df3b1745 100755
--- a/apps/wf/services.py
+++ b/apps/wf/services.py
@@ -103,7 +103,7 @@ class WfService(object):
         """
         today = str(now)[:10]+' 00:00:00'
         ticket_day_count_new = Ticket.objects.get_queryset(all=True).filter(
-            create_time__gte=today, create_time__lte=now, workflow=workflow).count() + 1
+            create_time__gte=today, create_time__lte=now, workflow=workflow).count()
         return '%s_%04d%02d%02d%04d' % (workflow.sn_prefix, now.year, now.month, now.day, ticket_day_count_new)
 
     @classmethod