diff --git a/usr.bin/seq/seq.1 b/usr.bin/seq/seq.1
--- a/usr.bin/seq/seq.1
+++ b/usr.bin/seq/seq.1
@@ -1,3 +1,6 @@
+.\"
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
 .\"	$NetBSD: seq.1,v 1.8 2013/04/07 17:37:45 jdf Exp $
 .\"
 .\" Copyright (c) 2005 The NetBSD Foundation, Inc.
@@ -69,7 +72,7 @@
 The
 .Nm
 utility accepts the following options:
-.Bl -tag -width Ar
+.Bl -tag -width indent
 .It Fl f Ar format , Fl -format Ar format
 Use a
 .Xr printf 3