diff --git a/neutron/tests/base.py b/neutron/tests/base.py
index 56678fe7b5..a39397c281 100644
--- a/neutron/tests/base.py
+++ b/neutron/tests/base.py
@@ -118,9 +118,9 @@ class BaseTestCase(sub_base.SubBaseTestCase):
         self.addCleanup(n_rpc.cleanup)
         n_rpc.init(CONF)
 
-    def setup_config(self):
+    def setup_config(self, args=None):
         """Tests that need a non-default config can override this method."""
-        self.config_parse()
+        self.config_parse(args=args)
 
     def config(self, **kw):
         """Override some configuration values.
diff --git a/neutron/tests/unit/ofagent/ofa_test_base.py b/neutron/tests/unit/ofagent/ofa_test_base.py
index 60c03ce762..0ff9c43356 100644
--- a/neutron/tests/unit/ofagent/ofa_test_base.py
+++ b/neutron/tests/unit/ofagent/ofa_test_base.py
@@ -69,3 +69,4 @@ class OFAAgentTestBase(OFATestBase):
                        help='openflow tcp listen port')
         ])
         cfg.CONF.set_override('root_helper', 'fake_helper', group='AGENT')
+        super(OFATestBase, self).setup_config()
diff --git a/neutron/tests/unit/test_db_plugin.py b/neutron/tests/unit/test_db_plugin.py
index 56868fcfd6..6d2dd8c752 100644
--- a/neutron/tests/unit/test_db_plugin.py
+++ b/neutron/tests/unit/test_db_plugin.py
@@ -155,7 +155,7 @@ class NeutronDbPluginV2TestCase(testlib_api.WebTestCase,
         # If test_config specifies some config-file, use it, as well
         for config_file in test_lib.test_config.get('config_files', []):
             args.extend(['--config-file', config_file])
-        self.config_parse(args=args)
+        super(NeutronDbPluginV2TestCase, self).setup_config(args=args)
 
     def _req(self, method, resource, data=None, fmt=None, id=None, params=None,
              action=None, subresource=None, sub_id=None, context=None):