1 files changed, 1 insertions, 1 deletions
diff --git a/views.py b/views.py
index 4431891..c647fac 100644
--- a/views.py
+++ b/views.py
@@ -77,7 +77,7 @@ def timetable(request, year_slug, timetable_slug, group_slug, year=None, week=No
     group = get_object_or_404(Group, slug=group_slug, timetable=timetable)
 
     courses = Course.objects.get_courses_for_group(group, begin__gte=start, begin__lt=end)
-    if courses.count() == 0 and provided_week:
+    if not courses.exists() and provided_week:
         raise Http404
 
     last_update = courses.aggregate(Max("last_update"))["last_update__max"]