--- src/share/man/man5/fstab.5	2006/04/17 18:01:37	1.3
+++ src/share/man/man5/fstab.5	2007/07/30 22:11:33	1.4
@@ -93,11 +93,11 @@ compile other filesystems as well.
 .Bl -tag -width indent -offset indent
 .It Em ufs
 a local
-.Tn UNIX
+.Ux
 filesystem
 .It Em mfs
 a local memory-based
-.Tn UNIX
+.Ux
 filesystem
 .It Em nfs
 a Sun Microsystems compatible ``Network File System''