diff --git a/apps/mtm/models.py b/apps/mtm/models.py
index b04e569a..7d84ebdc 100644
--- a/apps/mtm/models.py
+++ b/apps/mtm/models.py
@@ -154,4 +154,4 @@ class Route(CommonAModel):
         kwargs = {'material': material}
         if autotask:
             kwargs['is_autotask'] = True
-        return Route.objects.annotate(mgroups=Subquery(Mgroup.objects.filter(process=OuterRef('pk')))).filter(**kwargs).order_by('sort', 'process_sort' 'create_time')
+        return Route.objects.annotate(mgroups=Subquery(Mgroup.objects.filter(process=OuterRef('pk')))).filter(**kwargs).order_by('sort', 'process__sort' 'create_time')