diff --git a/roles/kerberos-client/defaults/main.yaml b/roles/kerberos-client/defaults/main.yaml
index 524c5ca178..b978ce369d 100644
--- a/roles/kerberos-client/defaults/main.yaml
+++ b/roles/kerberos-client/defaults/main.yaml
@@ -1,3 +1,3 @@
-admin_server: '{{ ansible_fqdn }}'
-kdcs:
+kerberos_admin_server: '{{ ansible_fqdn }}'
+kerberos_kdcs:
   - '{{ ansible_fqdn }}'