diff --git a/planetstack/model_policies/model_policy_Controller.py b/planetstack/model_policies/model_policy_Controller.py
index 98eeaff..6d73e0c 100644
--- a/planetstack/model_policies/model_policy_Controller.py
+++ b/planetstack/model_policies/model_policy_Controller.py
@@ -3,9 +3,6 @@
     from core.models import Controller, Site, ControllerSite, Slice, ControllerSlice, User, ControllerUser
     from collections import defaultdict
 
-    #controller = Controller.get(controller_id)
-
-	
     # relations for all sites
     ctrls_by_site = defaultdict(list)
     ctrl_sites = ControllerSite.objects.all()
diff --git a/planetstack/model_policies/model_policy_SitePrivilege.py b/planetstack/model_policies/model_policy_SitePrivilege.py
index 6e9a65c..d9c6a1e 100644
--- a/planetstack/model_policies/model_policy_SitePrivilege.py
+++ b/planetstack/model_policies/model_policy_SitePrivilege.py
@@ -6,7 +6,7 @@
     controller_site_privileges = ControllerSitePrivilege.objects.filter(
         site_privilege = site_privilege,
         )
-    existing_controllers = [csp.controller for sp in controller_site_privileges]
+    existing_controllers = [sp.controller for sp in controller_site_privileges]
     all_controllers = Controller.objects.all()
     for controller in all_controllers:
         if controller not in existing_controllers:
diff --git a/planetstack/model_policies/model_policy_Slice.py b/planetstack/model_policies/model_policy_Slice.py
index 1f58570..a9936bd 100644
--- a/planetstack/model_policies/model_policy_Slice.py
+++ b/planetstack/model_policies/model_policy_Slice.py
@@ -7,7 +7,7 @@
 
     controller_slices = ControllerSlice.objects.filter(slice=slice)
     existing_controllers = [cs.controller for cs in controller_slices] 
-    
+        
     all_controllers = Controller.objects.all() 
     for controller in all_controllers:
         if controller not in existing_controllers:
diff --git a/planetstack/model_policies/model_policy_SlicePrivilege.py b/planetstack/model_policies/model_policy_SlicePrivilege.py
index e58a973..bca7f22 100644
--- a/planetstack/model_policies/model_policy_SlicePrivilege.py
+++ b/planetstack/model_policies/model_policy_SlicePrivilege.py
@@ -6,7 +6,7 @@
     controller_slice_privileges = ControllerSlicePrivilege.objects.filter(
         slice_privilege = slice_privilege,
         )
-    existing_controllers = [csp.controller for sp in controller_slice_privileges]
+    existing_controllers = [sp.controller for sp in controller_slice_privileges]
     all_controllers = Controller.objects.all()
     for controller in all_controllers:
         if controller not in existing_controllers: