diff --git a/.zuul.yaml b/.zuul.yaml
index 98a3c3af..e283b354 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -680,8 +680,11 @@
         USE_PYTHON3: false
         NETWORK_API_EXTENSIONS: "{{ network_api_extensions | join(',') }}"
         TEMPEST_PLUGINS: /opt/stack/neutron-tempest-plugin
-      # NOTE(bcafarel): newer tests, unstable on rocky branch
+      # TODO(bcafarel): remove trunks subport_connectivity test from blacklist
+      # when bug https://bugs.launchpad.net/neutron/+bug/1838760 will be fixed
+      # NOTE(bcafarel): other are newer tests, unstable on rocky branch
       tempest_black_regex: "\
+          (^neutron_tempest_plugin.scenario.test_trunk.TrunkTest.test_subport_connectivity)|\
           (^neutron_tempest_plugin.scenario.test_port_forwardings.PortForwardingTestJSON.test_port_forwarding_to_2_servers)|\
           (^neutron_tempest_plugin.scenario.test_security_groups.NetworkSecGroupTest.test_multiple_ports_portrange_remote)"
     branches: