diff --git a/playbooks/roles/ironic-enroll-dynamic/tasks/main.yml b/playbooks/roles/ironic-enroll-dynamic/tasks/main.yml
index 4be2694d6..d94ddd205 100644
--- a/playbooks/roles/ironic-enroll-dynamic/tasks/main.yml
+++ b/playbooks/roles/ironic-enroll-dynamic/tasks/main.yml
@@ -15,7 +15,6 @@
 - name: "If in noauth mode, set Auth parameters to None"
   set_fact:
     auth_type: None
-    auth: None
   when: noauth_mode | bool == true
 - name: "Dynamic enrollment"
   os_ironic: