diff --git a/neutron_lbaas/tests/unit/common/cert_manager/barbican_auth/test_barbican_acl.py b/neutron_lbaas/tests/unit/common/cert_manager/barbican_auth/test_barbican_acl.py
index 8bad17804..a9f4757ba 100644
--- a/neutron_lbaas/tests/unit/common/cert_manager/barbican_auth/test_barbican_acl.py
+++ b/neutron_lbaas/tests/unit/common/cert_manager/barbican_auth/test_barbican_acl.py
@@ -50,4 +50,4 @@ class TestBarbicanACLAuth(base.BaseTestCase):
 
     def test_load_auth_driver(self):
         bcm = barbican_cert_manager.CertManager()
-        self.assertTrue(isinstance(bcm.auth, barbican_acl.BarbicanACLAuth))
+        self.assertIsInstance(bcm.auth, barbican_acl.BarbicanACLAuth)