diff --git a/lms/djangoapps/django_comment_client/base/urls.py b/lms/djangoapps/django_comment_client/base/urls.py
index fb687f4e47..18efbec502 100644
--- a/lms/djangoapps/django_comment_client/base/urls.py
+++ b/lms/djangoapps/django_comment_client/base/urls.py
@@ -10,7 +10,7 @@ urlpatterns = patterns('django_comment_client.base.views',
     url(r'threads/(?P<thread_id>[\w\-]+)/reply$', 'create_comment', name='create_comment'),
     url(r'threads/(?P<thread_id>[\w\-]+)/delete', 'delete_thread', name='delete_thread'),
     url(r'threads/(?P<thread_id>[\w\-]+)/upvote$', 'vote_for_thread', {'value': 'up'}, name='upvote_thread'),
-    url(r'threads/(?P<thread_id>[\w\-]+)/downvote$', 'vote_for_thread',  name='downvote_thread'),
+    url(r'threads/(?P<thread_id>[\w\-]+)/downvote$', 'vote_for_thread', {'value': 'down'}, name='downvote_thread'),
     url(r'threads/(?P<thread_id>[\w\-]+)/flagAbuse$', 'flag_abuse_for_thread', name='flag_abuse_for_thread'),
     url(r'threads/(?P<thread_id>[\w\-]+)/unFlagAbuse$', 'un_flag_abuse_for_thread', name='un_flag_abuse_for_thread'),
     url(r'threads/(?P<thread_id>[\w\-]+)/unvote$', 'undo_vote_for_thread', name='undo_vote_for_thread'),