diff --git a/playbooks/roles/ironic-enroll-dynamic/defaults/main.yml b/playbooks/roles/ironic-enroll-dynamic/defaults/main.yml
index 51acc7f6f..87892e464 100644
--- a/playbooks/roles/ironic-enroll-dynamic/defaults/main.yml
+++ b/playbooks/roles/ironic-enroll-dynamic/defaults/main.yml
@@ -3,7 +3,6 @@ ironic_url: "http://localhost:6385/"
 file_url_port: "8080"
 # Default network interface that bifrost will be attached to.
 network_interface: "virbr0"
-ans_network_interface: "{{ network_interface | replace('-', '_') }}"
 
 # Normally this would setting would be http in a bifrost installation
 # without TLS. This setting allows a user to override the setting in case
@@ -12,7 +11,7 @@ ans_network_interface: "{{ network_interface | replace('-', '_') }}"
 # documentation at http://ipxe.org/crypto
 ipa_file_protocol: "http"
 
-ipa_kernel_url: "{{ ipa_file_protocol }}://{{ hostvars[inventory_hostname]['ansible_' + ans_network_interface]['ipv4']['address'] }}:{{file_url_port}}/ipa.vmlinuz"
-ipa_ramdisk_url: "{{ ipa_file_protocol }}://{{ hostvars[inventory_hostname]['ansible_' + ans_network_interface]['ipv4']['address'] }}:{{file_url_port}}/ipa.initramfs"
+ipa_kernel_url: "{{ ipa_file_protocol }}://{{ hostvars[inventory_hostname]['ansible_' + network_interface | replace('-', '_')]['ipv4']['address'] }}:{{file_url_port}}/ipa.vmlinuz"
+ipa_ramdisk_url: "{{ ipa_file_protocol }}://{{ hostvars[inventory_hostname]['ansible_' + network_interface | replace('-', '_')]['ipv4']['address'] }}:{{file_url_port}}/ipa.initramfs"
 
 noauth_mode: true