diff --git a/.zuul.yaml b/.zuul.yaml
index 99cf416f..9f8cb7cf 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -173,6 +173,7 @@
         - 'designate_tempest_plugin'
         - 'barbican_tempest_plugin'
       black_regex:
+        - 'heat_tempest_plugin.tests.functional.test_nova_server_networks.CreateServerTest.test_create_update_server_with_subnet'
         - 'heat_tempest_plugin.tests.scenario.test_volumes.VolumeBackupRestoreIntegrationTest.test_cinder_volume_create_backup_restore'
         - 'heat_tempest_plugin.tests.scenario.test_server_software_config.SoftwareConfigIntegrationTest.test_server_software_config'
         - 'heat_tempest_plugin.tests.scenario.test_server_signal.ServerSignalIntegrationTest.test_server_signal_userdata_format_software_config'