diff --git a/ansible/roles/karbor/templates/karbor.conf.j2 b/ansible/roles/karbor/templates/karbor.conf.j2
index 90dd534c95..26d5be797d 100644
--- a/ansible/roles/karbor/templates/karbor.conf.j2
+++ b/ansible/roles/karbor/templates/karbor.conf.j2
@@ -6,6 +6,7 @@ transport_url = rabbit://{% for host in groups['rabbitmq'] %}{{ rabbitmq_user }}
 {% if service_name == 'karbor-api' %}
 osapi_karbor_listen = {{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}
 osapi_karbor_listen_port = {{ karbor_api_port }}
+osapi_karbor_workers = {{ openstack_service_workers }}
 {% endif %}
 
 [database]