cmd/torrent/metainfo.go | 1 +

diff --git a/cmd/torrent/metainfo.go b/cmd/torrent/metainfo.go
index 720ac333e87e28ad99b3ef02fd40ad7831d199f2..d40596b641d32c1ebf79655e48457f4904d77b33 100644
--- a/cmd/torrent/metainfo.go
+++ b/cmd/torrent/metainfo.go
@@ -20,6 +20,7 @@
 func metainfoCmd(ctx args.SubCmdCtx) (err error) {
 	var metainfoPath string
 	var mi *metainfo.MetaInfo
+	// TODO: Treat no subcommand as a failure.
 	return ctx.NewParser().AddParams(
 		args.Pos("torrent file", &metainfoPath, args.AfterParse(func() (err error) {
 			mi, err = metainfo.LoadFromFile(metainfoPath)