diff --git a/RIGS/urls.py b/RIGS/urls.py
index 2b65cb87..58b3c7a9 100644
--- a/RIGS/urls.py
+++ b/RIGS/urls.py
@@ -80,10 +80,10 @@ urlpatterns = patterns('',
                            name='event_archive'),
 
                        url(r'^event/(?P<pk>\d+)/version/$',
-                           permission_required_with_403('RIGS.view_event')(rigboard.EventDiff.as_view()),
+                           permission_required_with_403('RIGS.view_event')(rigboard.EventRevisions.as_view()),
                            name='event_revisions'),
                         url(r'^event/(?P<pk>\d+)/version/(?P<source>\d+)/$',
-                           permission_required_with_403('RIGS.view_event')(rigboard.EventRevision.as_view()),
+                           permission_required_with_403('RIGS.view_event')(rigboard.EventDiff.as_view()),
                            name='event_diff'),
                         url(r'^event/(?P<pk>\d+)/version/(?P<source>\d+)/(?P<dest>\d+)$',
                            permission_required_with_403('RIGS.view_event')(rigboard.EventDiff.as_view()),