diff --git a/playbooks/kayobe-overcloud-upgrade-base/overrides.yml.j2 b/playbooks/kayobe-overcloud-upgrade-base/overrides.yml.j2
index 7511dc16d..bbc149bab 100644
--- a/playbooks/kayobe-overcloud-upgrade-base/overrides.yml.j2
+++ b/playbooks/kayobe-overcloud-upgrade-base/overrides.yml.j2
@@ -7,7 +7,7 @@ disable_selinux_do_reboot: false
 docker_registry_mirrors:
   - "http://{{ zuul_site_mirror_fqdn }}:8081/registry-1.docker/"
 
-{% if not previous_release | default(false) %}
+{% if not is_previous_release | default(false) %}
 kolla_source_url: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['git.openstack.org/openstack/kolla'].src_dir }}"
 kolla_source_version: "{{ zuul.projects['git.openstack.org/openstack/kolla'].checkout }}"
 kolla_ansible_source_url: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['git.openstack.org/openstack/kolla-ansible'].src_dir }}"
diff --git a/playbooks/kayobe-overcloud-upgrade-base/pre.yml b/playbooks/kayobe-overcloud-upgrade-base/pre.yml
index ca86117f9..5d732e313 100644
--- a/playbooks/kayobe-overcloud-upgrade-base/pre.yml
+++ b/playbooks/kayobe-overcloud-upgrade-base/pre.yml
@@ -51,7 +51,7 @@
         src: overrides.yml.j2
         dest: "{{ previous_kayobe_config_src_dir }}/etc/kayobe/zz-overrides.yml"
       vars:
-        previous_release: true
+        is_previous_release: true
 
     # NOTE(mgoddard): The kayobe dev config by default expects a bridge -
     # breth1 - to exist with an IP address of 192.168.33.3.