diff --git a/doc/source/plugin-registry.rst b/doc/source/plugin-registry.rst
index 104fca679c..38910b0785 100644
--- a/doc/source/plugin-registry.rst
+++ b/doc/source/plugin-registry.rst
@@ -64,6 +64,7 @@ gnocchi                                `git://git.openstack.org/openstack/gnocch
 group-based-policy                     `git://git.openstack.org/openstack/group-based-policy <https://git.openstack.org/cgit/openstack/group-based-policy>`__
 heat                                   `git://git.openstack.org/openstack/heat <https://git.openstack.org/cgit/openstack/heat>`__
 higgins                                `git://git.openstack.org/openstack/higgins <https://git.openstack.org/cgit/openstack/higgins>`__
+horizon-mellanox                       `git://git.openstack.org/openstack/horizon-mellanox <https://git.openstack.org/cgit/openstack/horizon-mellanox>`__
 ironic                                 `git://git.openstack.org/openstack/ironic <https://git.openstack.org/cgit/openstack/ironic>`__
 ironic-inspector                       `git://git.openstack.org/openstack/ironic-inspector <https://git.openstack.org/cgit/openstack/ironic-inspector>`__
 ironic-staging-drivers                 `git://git.openstack.org/openstack/ironic-staging-drivers <https://git.openstack.org/cgit/openstack/ironic-staging-drivers>`__