diff --git a/oslo_messaging/tests/test_transport.py b/oslo_messaging/tests/test_transport.py
index a09953afe..8fad94776 100644
--- a/oslo_messaging/tests/test_transport.py
+++ b/oslo_messaging/tests/test_transport.py
@@ -14,9 +14,9 @@
 #    under the License.
 
 import fixtures
+from mox3 import mox
 from oslo_config import cfg
 import six
-from six.moves import mox
 from stevedore import driver
 import testscenarios
 
diff --git a/tests/test_transport.py b/tests/test_transport.py
index 5a9a73c83..36f8db8ea 100644
--- a/tests/test_transport.py
+++ b/tests/test_transport.py
@@ -14,8 +14,8 @@
 #    under the License.
 
 import fixtures
+from mox3 import mox
 import six
-from six.moves import mox
 from stevedore import driver
 import testscenarios