diff --git a/setup.cfg b/setup.cfg
index e6ff2a10..85d80652 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -149,6 +149,8 @@ oslo.config.opts =
     neutron.ml2.sriov.agent = neutron.opts:list_sriov_agent_opts
     neutron.qos = neutron.opts:list_qos_opts
     nova.auth = neutron.opts:list_auth_opts
+oslo.config.opts.defaults =
+    oslo.middleware.cors = neutron.common.config:set_cors_middleware_defaults
 neutron.db.alembic_migrations =
     neutron = neutron.db.migration:alembic_migrations
 neutron.interface_drivers =