diff --git a/roles/base/tasks/users/root.yml b/roles/base/tasks/users/root.yml
index 06a234c..52d05f2 100644
--- a/roles/base/tasks/users/root.yml
+++ b/roles/base/tasks/users/root.yml
@@ -16,7 +16,7 @@
     - public_keys/yubikey.pub
 
 - name: users | root | install public key for backups
-  authorized_keys:
+  authorized_key:
     user: root
     state: present
     key: public_keys/backup_ed25519.pub