diff --git a/octavia/api/cluster.yml b/octavia/api/cluster.yml
index 66622e3..31989b0 100644
--- a/octavia/api/cluster.yml
+++ b/octavia/api/cluster.yml
@@ -24,6 +24,7 @@
         protocol: ${_param:cluster_internal_protocol}
       message_queue:
         host: ${_param:openstack_message_queue_address}
+        port: ${_param:openstack_rabbitmq_port}
         x509:
           enabled: ${_param:openstack_rabbitmq_x509_enabled}
           ca_file: ${_param:rabbitmq_octavia_ssl_ca_file}