diff --git a/borgmatic/commands/arguments.py b/borgmatic/commands/arguments.py
index 9499e95..4699010 100644
--- a/borgmatic/commands/arguments.py
+++ b/borgmatic/commands/arguments.py
@@ -787,6 +787,7 @@ def make_parsers():
         '--repository',
         help='Path of repository to break the lock for, defaults to the configured repository if there is only one',
     )
+    break_lock_group.add_argument('-h', '--help', action='help', help='Show this help message and exit')
 
     borg_parser = subparsers.add_parser(
         'borg',