diff --git a/ietf/idrfc/urls.py b/ietf/idrfc/urls.py
index d52c72ada..c70c45e30 100644
--- a/ietf/idrfc/urls.py
+++ b/ietf/idrfc/urls.py
@@ -45,9 +45,9 @@ urlpatterns = patterns('',
     url(r'^(?P<name>[A-Za-z0-9._+-]+)/((?P<rev>[0-9-]+)/)?$', views_doc.document_main, name="doc_view"),
     url(r'^(?P<name>[A-Za-z0-9._+-]+)/history/$', views_doc.document_history, name="doc_history"),
     url(r'^(?P<name>[A-Za-z0-9._+-]+)/writeup/$', views_doc.document_writeup, name="doc_writeup"),
-    url(r'^(?P<name>[A-Za-z0-9._+-]+)/ballot/(?P<ballot_id>[A-Za-z0-9.-]+)/position/$', views_ballot.edit_position),
-    url(r'^(?P<name>[A-Za-z0-9._+-]+)/ballot/(?P<ballot_id>[A-Za-z0-9.-]+)/emailposition/$', views_ballot.send_ballot_comment, name='doc_send_ballot_comment'),
-    url(r'^(?P<name>[A-Za-z0-9._+-]+)/ballot/(?P<ballot_id>[A-Za-z0-9.-]+)/$', views_doc.document_ballot, name="doc_ballot"),
+    url(r'^(?P<name>[A-Za-z0-9._+-]+)/ballot/(?P<ballot_id>[0-9]+)/position/$', views_ballot.edit_position),
+    url(r'^(?P<name>[A-Za-z0-9._+-]+)/ballot/(?P<ballot_id>[0-9]+)/emailposition/$', views_ballot.send_ballot_comment, name='doc_send_ballot_comment'),
+    url(r'^(?P<name>[A-Za-z0-9._+-]+)/ballot/(?P<ballot_id>[0-9]+)/$', views_doc.document_ballot, name="doc_ballot"),
     url(r'^(?P<name>[A-Za-z0-9._+-]+)/ballot/$', views_doc.document_ballot, name="doc_ballot"),
     (r'^(?P<name>[A-Za-z0-9._+-]+)/doc.json$', views_doc.document_debug),
     (r'^(?P<name>[A-Za-z0-9._+-]+)/_ballot.data$', views_doc.ballot_html), # why is this url so weird instead of just ballot.html?