diff --git a/backup/backup_mc.sh b/backup/backup_mc.sh
index 1eb7d4e..ec05b21 100755
--- a/backup/backup_mc.sh
+++ b/backup/backup_mc.sh
@@ -25,7 +25,7 @@ rdiff-backup \
 	--exclude $DIR/scripts/ \
 	$DIR $BACKUPDIR
 
-rdiff-backup --force --remove-older-than 2M $BACKUPDIR
+rdiff-backup --force --remove-older-than 2W $BACKUPDIR
 
 # If time is 00:00/midnight
 if [ "$TIME" = 0000 ] || [ "$NOW" = 1 ]