diff --git a/xos/openstack_observer/steps/sync_controller_slices.py b/xos/openstack_observer/steps/sync_controller_slices.py
index 619a6ed..fa62dba 100644
--- a/xos/openstack_observer/steps/sync_controller_slices.py
+++ b/xos/openstack_observer/steps/sync_controller_slices.py
@@ -70,10 +70,10 @@
 
     def delete_record(self, controller_slice):
         user = User.objects.get(id=controller_slice.slice.creator.id)
-        driver = OpenStackDriver().admin_driver(controller=controller_slice.controller.name)
+        driver = OpenStackDriver().admin_driver(controller=controller_slice.controller)
         client_driver = driver.client_driver(caller=user,
                                              tenant=controller_slice.slice.name,
-                                             controller=controller_slice.controller.name)
+                                             controller=controller_slice.controller)
 
         if controller_slice.router_id and controller_slice.subnet_id:
             client_driver.delete_router_interface(controller_slice.router_id, controller_slice.subnet_id)