diff --git a/xos/model_policies/model_policy_ControllerSlice.py b/xos/model_policies/model_policy_ControllerSlice.py
index 1861c66..bfe7995 100644
--- a/xos/model_policies/model_policy_ControllerSlice.py
+++ b/xos/model_policies/model_policy_ControllerSlice.py
@@ -8,9 +8,18 @@
         except:
             his_status_code = 0
  
+        fields = []
         if (my_status_code not in [0,his_status_code]):
             controller_slice.slice.backend_status = controller_slice.backend_status
-            controller_slice.slice.save(update_fields = ['backend_status'])
+            fields+=['backend_status']
+
+        if (controller_slice.backend_register != controller_slice.slice.backend_register):
+            controller_slice.slice.backend_register = controller_slice.backend_register
+            fields+=['backend_register']
+
+        controller_slice.slice.save(update_fields = fields)
+
+        
     except Exception,e:
         print str(e)	
         pass