diff --git a/defaults/main.yml b/defaults/main.yml
index 98cb9ac..396bfab 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -25,7 +25,7 @@ borgmatic_timer: cron
 borgmatic_timer_hour: "{{ range(0, 5) | random(seed=inventory_hostname) }}"
 borgmatic_timer_minute: "{{ range(0, 59) | random(seed=inventory_hostname) }}"
 
-borgbase_ssh_key_name: "backup@{{ inventory_hostname }}"
+borgbase_ssh_key_name: "backup_{{ inventory_hostname }}"
 
 borgmatic_config_name: config.yaml
 borgmatic_hooks: