diff --git a/xos/attic/header.py b/xos/attic/header.py
index 3ee13a7..15d1329 100644
--- a/xos/attic/header.py
+++ b/xos/attic/header.py
@@ -16,7 +16,7 @@
 
 # models.py -  ExampleService Models
 
-from core.models import Service, TenantWithContainer
+from core.models import Service, TenantWithContainer, XOSBase
 from django.db import transaction
 from django.db.models import *