diff --git a/server/repoman/repoman/controllers/api/users.py b/server/repoman/repoman/controllers/api/users.py
index 5228321..3b1d2d2 100644
--- a/server/repoman/repoman/controllers/api/users.py
+++ b/server/repoman/repoman/controllers/api/users.py
@@ -106,6 +106,8 @@ def delete_user(self, user, format='json'):
                 meta.Session.delete(i.checksum)
                 meta.Session.delete(i.shared)
                 meta.Session.delete(i)
+            proxy = user.certificate
+            meta.Session.delete(proxy)
             meta.Session.delete(user)
             meta.Session.commit()
         else: