diff --git a/doc/intro.man b/doc/intro.man
index 1a3121c8..9aea252f 100644
--- a/doc/intro.man
+++ b/doc/intro.man
@@ -476,7 +476,8 @@ FUNCTIONS
 
 	The following table lists each private curses routine and the name 
 	of the manual page on which it is described. These routines should
-	not be used directly if portability is to be considered.
+	not be used directly if avoidable. They are not portable, and 
+	are subject to change at any time.
 
 	   Curses Function        Manual Page Name