Index: django/contrib/comments/urls.py
===================================================================
--- django/contrib/comments/urls.py	(revision 9811)
+++ django/contrib/comments/urls.py	(working copy)
@@ -13,6 +13,6 @@
 )
 
 urlpatterns += patterns('',
-    url(r'^cr/(\d+)/(\w+)/$', 'django.views.defaults.shortcut', name='comments-url-redirect'),
+    url(r'^cr/(\d+)/((\w|-)+)/$', 'django.views.defaults.shortcut', name='comments-url-redirect'),
 )