diff --git a/networking_bgpvpn/neutron/extensions/bgpvpn.py b/networking_bgpvpn/neutron/extensions/bgpvpn.py
index 8cba38e1..de70b7eb 100755
--- a/networking_bgpvpn/neutron/extensions/bgpvpn.py
+++ b/networking_bgpvpn/neutron/extensions/bgpvpn.py
@@ -18,7 +18,6 @@ import abc
 import six
 
 from neutron.api import extensions
-from neutron.api.v2 import attributes as attr
 from neutron.api.v2 import base
 from neutron.api.v2 import resource_helper
 from neutron import manager
@@ -110,7 +109,7 @@ def _validate_rt_list(data, valid_values=None):
 return msg
 
 for item in data:
- msg = attr._validate_regex(item, constants.RT_REGEX)
+ msg = api.validators.validate_regex(item, constants.RT_REGEX)
 if msg:
 LOG.debug(msg)
 return msg
@@ -241,13 +240,6 @@ class Bgpvpn(extensions.ExtensionDescriptor):
 def get_resources(cls):
 plural_mappings = resource_helper.build_plural_mappings(
 {}, RESOURCE_ATTRIBUTE_MAP)
- plural_mappings['route_targets'] = 'route_target'
- plural_mappings['import_targets'] = 'import_target'
- plural_mappings['export_targets'] = 'export_target'
- plural_mappings['route_distinguishers'] = 'route_distinguishers'
- plural_mappings['network_associations'] = 'network_association'
- plural_mappings['router_associations'] = 'router_association'
- attr.PLURALS.update(plural_mappings)
 resources = resource_helper.build_resource_info(plural_mappings,
 RESOURCE_ATTRIBUTE_MAP,
 constants.BGPVPN,
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