diff --git a/hosts/monitoring-3/rules.yml b/hosts/monitoring-3/rules.yml
index 95ed038..1382016 100644
--- a/hosts/monitoring-3/rules.yml
+++ b/hosts/monitoring-3/rules.yml
@@ -18,7 +18,7 @@ groups:
       summary: "Current system of {{ $labels.instance }} not in sync with config"
       description: "The current system hash of {{ $labels.instance }} does not match the one generated by hydra based on the current config"
   - alert: BackupStorageFull
-    expr: ((node_filesystem_avail_bytes{instance="clerie-backup.mon.clerie.de:9100", job="node-exporter", mountpoint="/mnt/clerie-backup"} / node_filesystem_size_bytes{instance="clerie-backup.mon.clerie.de:9100", job="node-exporter", mountpoint="/mnt/clerie-backup"}) * 100) < 5
+    expr: ((node_filesystem_avail_bytes{instance="clerie-backup.net.clerie.de", job="node-exporter", mountpoint="/mnt/clerie-backup"} / node_filesystem_size_bytes{instance="clerie-backup.net.clerie.de", job="node-exporter", mountpoint="/mnt/clerie-backup"}) * 100) < 5
     for: 30m
     labels:
       severity: critical