--- src/usr.bin/tftp/tftp.1	2006/02/17 19:39:11	1.3
+++ src/usr.bin/tftp/tftp.1	2007/07/30 22:11:33	1.4
@@ -137,7 +137,7 @@ If the latter form is used,
 the hostname specified becomes the default for future transfers.
 If the remote-directory form is used, the remote host is
 assumed to be a
-.Tn UNIX
+.Ux
 machine.
 If you need to specify IPv6 numeric address to
 .Ar hosts ,