diff --git a/nodes/htz-hel/backup-kunsi.py b/nodes/htz-hel/backup-kunsi.py
index 71d65c8..be66592 100644
--- a/nodes/htz-hel/backup-kunsi.py
+++ b/nodes/htz-hel/backup-kunsi.py
@@ -30,7 +30,7 @@ nodes['htz-hel.backup-kunsi'] = {
         },
         'backup-server': {
             'encrypted-devices': {
-                '/dev/sdb1': bwpass.password('bw/backup-kunsi/encryption-passphrase'),
+                '/dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi1-part1': bwpass.password('bw/backup-kunsi/encryption-passphrase'),
             },
             'clients': {
                 'kunsi-t470': {