diff --git a/neutron/tests/unit/test_context.py b/neutron/tests/unit/test_context.py
index 1ecf338a22f..9dfc7f30662 100644
--- a/neutron/tests/unit/test_context.py
+++ b/neutron/tests/unit/test_context.py
@@ -34,7 +34,7 @@ class TestNeutronContext(base.BaseTestCase):
         self.assertEqual('user_id', ctx.user_id)
         self.assertEqual('tenant_id', ctx.project_id)
         self.assertEqual('tenant_id', ctx.tenant_id)
-        self.assertThat(ctx.request_id, matchers.StartsWith('req-'))
+        self.assertThat(ctx.request_id, matchers.StartsWith(b'req-'))
         self.assertEqual('user_id', ctx.user)
         self.assertEqual('tenant_id', ctx.tenant)
         self.assertIsNone(ctx.user_name)
diff --git a/tox.ini b/tox.ini
index 37ddf17ccd0..f943932b2f0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -103,6 +103,7 @@ commands = sphinx-build -W -b html doc/source doc/build/html
 
 [testenv:py34]
 commands = python -m testtools.run \
+    neutron.tests.unit.test_context \
     neutron.tests.unit.services.metering.drivers.test_iptables \
     neutron.tests.unit.services.metering.agents.test_metering_agent \
     neutron.tests.unit.services.l3_router.test_l3_apic \