diff --git a/src/postorius/urls.py b/src/postorius/urls.py
index f9b29f8..5566fa9 100644
--- a/src/postorius/urls.py
+++ b/src/postorius/urls.py
@@ -53,7 +53,7 @@
                                 url(r'^subscription_requests$',
                                     'list_subscription_requests',
                                     name='list_subscription_requests'),
-                                url(r'^handle_subscription_request/(?P<request_id>\d+)/(?P<action>[accept|reject|discard|defer]+)$',
+                                url(r'^handle_subscription_request/(?P<request_id>[^/]+)/(?P<action>[accept|reject|discard|defer]+)$',
                                     'handle_subscription_request',
                                     name='handle_subscription_request'),
                                 url(r'^mass_subscribe/$',