diff --git a/share/config_backup_timer.toml b/share/config_backup_timer.toml
index 27720bec5..5c70c3374 100644
--- a/share/config_backup_timer.toml
+++ b/share/config_backup_timer.toml
@@ -59,5 +59,18 @@ name.en = ""
         type = "number"
         min = 0
         default = 8
+        
+        [main.main.keep_last]
+        help = ''
+        type = "number"
+        min = 0
+        default = 0
+        
+        [main.main.keep_within]
+        help = ''
+        type = "string"
+        pattern.regexp = '^\d+[Hdw]$'
+        pattern.error = "keep_within_error"
+        default = ""
 
 
diff --git a/src/repositories/tar.py b/src/repositories/tar.py
index 2c0e17c13..b676d5844 100644
--- a/src/repositories/tar.py
+++ b/src/repositories/tar.py
@@ -182,7 +182,7 @@ class TarBackupArchive(BackupArchive):
                 return "\n".join(tar.getnames())
             else:
                 return {f.name: {
-                                    "mode": f.mode, # FIXME Numeric or letter mode
+                                    "mode": f.mode,  # FIXME Numeric or letter mode
                                     "type": int(f.type),
                                     "uid": f.uid,
                                     "gid": f.gid,