diff --git a/src/authentic2_idp_oidc/urls.py b/src/authentic2_idp_oidc/urls.py
index b5f0ffaee..4dee5e9f5 100644
--- a/src/authentic2_idp_oidc/urls.py
+++ b/src/authentic2_idp_oidc/urls.py
@@ -23,19 +23,19 @@ urlpatterns = [
     url(r'^.well-known/openid-configuration$',
         views.openid_configuration,
         name='oidc-openid-configuration'),
-    url(r'^idp/oidc/certs/$',
+    url(r'^idp/oidc/certs/?$',
         views.certs,
         name='oidc-certs'),
-    url(r'^idp/oidc/authorize/$',
+    url(r'^idp/oidc/authorize/?$',
         views.authorize,
         name='oidc-authorize'),
-    url(r'^idp/oidc/token/$',
+    url(r'^idp/oidc/token/?$',
         views.token,
         name='oidc-token'),
-    url(r'^idp/oidc/user_info/$',
+    url(r'^idp/oidc/user_info/?$',
         views.user_info,
         name='oidc-user-info'),
-    url(r'^idp/oidc/logout/$',
+    url(r'^idp/oidc/logout/?$',
         views.logout,
         name='oidc-logout'),
 ]