diff --git a/ansible/roles/kolla-openstack/templates/ironic.conf.j2 b/ansible/roles/kolla-openstack/templates/ironic.conf.j2
index 2e2b0a13f136630745a770e11689f0fbda5fa449..b5d519418f9aacce3b6763311e564a4e383e2d3f 100644
--- a/ansible/roles/kolla-openstack/templates/ironic.conf.j2
+++ b/ansible/roles/kolla-openstack/templates/ironic.conf.j2
@@ -29,7 +29,7 @@ provisioning_network = {{ kolla_ironic_provisioning_network }}
 
 [pxe]
 {% if kolla_ironic_pxe_append_params %}
-pxe_append_params = {{ kolla_ironic_pxe_append_params | join(' ') }}
+kernel_append_params = {{ kolla_ironic_pxe_append_params | join(' ') }}
 {% endif %}
 
 {% raw %}