diff --git a/plstackapi/planetstack/urls.py b/plstackapi/planetstack/urls.py
index 2f7745e..629d89b 100644
--- a/plstackapi/planetstack/urls.py
+++ b/plstackapi/planetstack/urls.py
@@ -23,7 +23,7 @@
     url(r'^plstackapi/$', api_root),
     
     url(r'^plstackapi/roles$', RoleListCreate.as_view(), name='role-list'),
-    url(r'^plstackapi/roles/(?P<pk>[0-9]+)/$', RoleRetrieveUpdateDestroy.as_view(), name='role-detail'),
+    url(r'^plstackapi/roles/(?P<pk>[a-zA-Z0-9]+)/$', RoleRetrieveUpdateDestroy.as_view(), name='role-detail'),
 
     #url(r'^plstackapi/sites/$', views.SiteList.as_view(), name='site-list'),
     #url(r'^plstackapi/sites/(?P<pk>[0-9]+)/$', views.SiteDetail.as_view(), name='site-detail'),