diff --git a/neutron_vpnaas/tests/functional/strongswan/test_strongswan_driver.py b/neutron_vpnaas/tests/functional/strongswan/test_strongswan_driver.py
index 245da36c7..ecd0a0d0b 100644
--- a/neutron_vpnaas/tests/functional/strongswan/test_strongswan_driver.py
+++ b/neutron_vpnaas/tests/functional/strongswan/test_strongswan_driver.py
@@ -91,7 +91,6 @@ class TestStrongSwanDeviceDriver(base.BaseSudoTestCase):
     def setUp(self):
         super(TestStrongSwanDeviceDriver, self).setUp()
         self.conf = cfg.CONF
-        self.conf.use_namespaces = True
         self.conf.register_opts(l3_config.OPTS)
         self.conf.register_opts(ipsec.ipsec_opts, 'ipsec')
         self.conf.register_opts(strongswan_ipsec.strongswan_opts,
diff --git a/neutron_vpnaas/tests/unit/services/vpn/device_drivers/test_ipsec.py b/neutron_vpnaas/tests/unit/services/vpn/device_drivers/test_ipsec.py
index c0a8eccf1..875754648 100644
--- a/neutron_vpnaas/tests/unit/services/vpn/device_drivers/test_ipsec.py
+++ b/neutron_vpnaas/tests/unit/services/vpn/device_drivers/test_ipsec.py
@@ -278,7 +278,6 @@ class BaseIPsecDeviceDriver(base.BaseTestCase):
         self.driver = driver(
             self.agent,
             FAKE_HOST)
-        self.conf.use_namespaces = True
         self.driver.agent_rpc = mock.Mock()
         self.ri_kwargs = {'router': {'id': FAKE_ROUTER_ID, 'ha': False},
                           'agent_conf': self.conf,
diff --git a/neutron_vpnaas/tests/unit/services/vpn/test_vpn_service.py b/neutron_vpnaas/tests/unit/services/vpn/test_vpn_service.py
index f836c7303..e07e57dc3 100644
--- a/neutron_vpnaas/tests/unit/services/vpn/test_vpn_service.py
+++ b/neutron_vpnaas/tests/unit/services/vpn/test_vpn_service.py
@@ -51,7 +51,6 @@ class VPNBaseTestCase(base.BaseTestCase):
     def setUp(self):
         super(VPNBaseTestCase, self).setUp()
         self.conf = cfg.CONF
-        self.conf.use_namespaces = True
         self.ri_kwargs = {'router': {'id': FAKE_ROUTER_ID, 'ha': False},
                           'agent_conf': self.conf,
                           'interface_driver': mock.sentinel.interface_driver}