diff --git a/www/podjango/apps/cast/views.py b/www/podjango/apps/cast/views.py
index 27dd58ebb7a03a395bbe10b295bf2337f10fcf56..14af20ac7dab084677fa7d07e5a1e4dab578c9cc 100644
--- a/www/podjango/apps/cast/views.py
+++ b/www/podjango/apps/cast/views.py
@@ -17,6 +17,7 @@
 # "AGPLv3".  If not, see <http://www.gnu.org/licenses/>.
 #
 from datetime import datetime
+from functools import reduce
 
 from django.views.generic.list import ListView
 from django.shortcuts import get_object_or_404, render