diff --git a/www/conservancy/apps/events/view_helpers.py b/www/conservancy/apps/events/view_helpers.py
index 4023364949adfd011aa6cd939703e6423b6add5b..b9f586fb004e80d7b5515f624d35c70fb3fe6e44 100644
--- a/www/conservancy/apps/events/view_helpers.py
+++ b/www/conservancy/apps/events/view_helpers.py
@@ -15,6 +15,6 @@ def organize_media_by_event(eventmedia_queryset):
     mbe = [{'event': x[0].event,
             'date': max(y.date_created for y in x),
             'media_list': ', '.join(set(y.get_format_display() for y in x))}
-           for x in media_by_event.values()]
+           for x in list(media_by_event.values())]
     mbe.sort(key=(lambda x: x['date']), reverse=True) # sort by date
     return mbe