diff --git a/neutron/tests/unit/plugins/ml2/test_ext_portsecurity.py b/neutron/tests/unit/plugins/ml2/test_ext_portsecurity.py
index be1de3722d6..b813d8aebfc 100644
--- a/neutron/tests/unit/plugins/ml2/test_ext_portsecurity.py
+++ b/neutron/tests/unit/plugins/ml2/test_ext_portsecurity.py
@@ -41,6 +41,7 @@ class PSExtDriverTestCase(test_plugin.Ml2PluginV2TestCase,
                  'shared': False,
                  'admin_state_up': True,
                  'status': 'ACTIVE'}}
+        network = None
         try:
             network = _core_plugin.create_network(admin_ctx, args)
             _value = network[psec.PORTSECURITY]