diff --git a/xos/synchronizers/onos/steps/sync_onosapp.py b/xos/synchronizers/onos/steps/sync_onosapp.py
index f460c2b..a26a916 100644
--- a/xos/synchronizers/onos/steps/sync_onosapp.py
+++ b/xos/synchronizers/onos/steps/sync_onosapp.py
@@ -18,6 +18,7 @@
 from xos.logger import Logger, logging
 from services.vrouter.models import VRouterService
 from services.vtn.models import VTNService
+from services.cord.models import VOLTService, VOLTDevice, AccessDevice
 
 # hpclibrary will be in steps/..
 parentdir = os.path.join(os.path.dirname(__file__),"..")