diff --git a/hosts/backup-4/configuration.nix b/hosts/backup-4/configuration.nix
index 7b693ee..580a714 100644
--- a/hosts/backup-4/configuration.nix
+++ b/hosts/backup-4/configuration.nix
@@ -23,12 +23,16 @@
     enable = true;
     extraConfig = ''
       snapshot_root	/mnt/backup-4/
-      retain	daily	14
+      rsync_short_args	-rltD
+      retain	alpha	14
       ssh_args	-o BatchMode=yes -o IdentityFile=/var/src/secrets/rsnapshot/id_rsa
       backup	backup-replication@clerie-backup.net.clerie.de:/clerie-backup-replication/	clerie-backup/
     '';
+    # rsync_short_args
+    # -a -> -rlptgoD
+    # -rltD ist wie -a nur das alle Dateiberechtigungen und Besitzangabe ignoriert werden
     cronIntervals = {
-      daily = "15 6 * * * ";
+      alpha = "15 6 * * * ";
     };
   };