diff --git a/doc/index.html.in b/doc/index.html.in
index 1dfb7ab116..434e4ae88a 100644
--- a/doc/index.html.in
+++ b/doc/index.html.in
@@ -98,7 +98,7 @@
             <A HREF="../dvi/develenv.dvi">
                     <IMG SRC="images/dvi.gif" HEIGHT=18 WIDTH=16></A>
             <A HREF="develenv/index.html">
-               RTEMS Development Environment Guide</A>
+               RTEMS Development Environment Guide</A> (out of date)
             </LI>
 
         <LI><A HREF="../pdf/rtems_gdb.pdf">