diff --git a/ansible/roles/ironic/templates/ironic.conf.j2 b/ansible/roles/ironic/templates/ironic.conf.j2
index 15109880f9..f5f4a6d87d 100644
--- a/ansible/roles/ironic/templates/ironic.conf.j2
+++ b/ansible/roles/ironic/templates/ironic.conf.j2
@@ -13,6 +13,7 @@ transport_url = rabbit://{% for host in groups['rabbitmq'] %}{{ rabbitmq_user }}
 {% if service_name == 'ironic-api' %}
 [api]
 host_ip = {{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}
+api_workers = {{ openstack_service_workers }}
 {% endif %}
 
 {% if service_name == 'ironic-conductor' %}