diff --git a/mach/i80/libmon/README b/mach/i80/libmon/README
index 20fb6f21..e4756745 100644
--- a/mach/i80/libmon/README
+++ b/mach/i80/libmon/README
@@ -1,5 +1,6 @@
-This directory contains the files char.her.s, that has routines
+This library should contain one of the files char.her.s, that has routines
 getchar and putchar for the MC-CPM, and char.nas.s, that
 has the same routines for the Nascom.
-The library "tail" should contain one of these two files.
 The default is char.her.s.
+The file char.nas.s is presented in this directory and not included
+in the libarary.