diff --git a/usr.bin/ftp/ftp.1 b/usr.bin/ftp/ftp.1
index 738000f4c75f..18c7be08e961 100644
--- a/usr.bin/ftp/ftp.1
+++ b/usr.bin/ftp/ftp.1
@@ -1,4 +1,4 @@
-.\" 	$Id: ftp.1,v 1.8 1998/03/01 18:58:03 steve Exp $
+.\" 	$Id: ftp.1,v 1.9 1999/06/25 14:11:12 ru Exp $
 .\" 	$NetBSD: ftp.1,v 1.21 1997/06/10 21:59:58 lukem Exp $
 .\"
 .\" Copyright (c) 1985, 1989, 1990, 1993
@@ -1346,7 +1346,9 @@ By default, this is bound to the TAB key.
 utilizes the following environment variables.
 .Bl -tag -width "FTP_PASSIVE_MODE"
 .It Ev FTP_PASSIVE_MODE
-Use passive mode FTP by default.
+If set to
+.Sq YES ,
+use passive mode FTP by default.
 .It Ev FTPSERVER
 Host to use as gate-ftp server when
 .Ic gate