diff --git a/Usage.md b/Usage.md
index cb44522..b0d863f 100644
--- a/Usage.md
+++ b/Usage.md
@@ -159,6 +159,7 @@ optional args:
  -a      auto NNN_FIFO
  -A      no dir auto-enter during filter
  -b key  open bookmark key (trumps -s/S)
+ -B      use bsdtar for archives
  -c      cli-only NNN_OPENER (trumps -e)
  -C      8-color scheme
  -d      detail mode