diff --git a/neutron/tests/etc/neutron.conf b/neutron/tests/etc/neutron.conf
index cb963f93054..798ff3e9f34 100644
--- a/neutron/tests/etc/neutron.conf
+++ b/neutron/tests/etc/neutron.conf
@@ -11,9 +11,6 @@ bind_host = 0.0.0.0
 # Port the bind the API server to
 bind_port = 9696
 
-# Path to the extensions
-api_extensions_path = neutron/tests/unit/extensions
-
 # Paste configuration file
 api_paste_config = api-paste.ini.test
 
diff --git a/neutron/tests/unit/api/test_extensions.py b/neutron/tests/unit/api/test_extensions.py
index 955d8af8fdf..8d7b371cd46 100644
--- a/neutron/tests/unit/api/test_extensions.py
+++ b/neutron/tests/unit/api/test_extensions.py
@@ -106,6 +106,8 @@ class ExtensionPathTest(base.BaseTestCase):
         super(ExtensionPathTest, self).setUp()
 
     def test_get_extensions_path_with_plugins(self):
+        cfg.CONF.set_override('api_extensions_path',
+                              'neutron/tests/unit/extensions')
         path = extensions.get_extensions_path(
             {lib_const.CORE: FakePluginWithExtension()})
         self.assertEqual(path,