diff --git a/docs/building.sgml b/docs/building.sgml
index 99a36ac872a74cb895e137c7f4a88cd39ea24af0..b7117595ba1d29781a90a07677999c53d33e66cd 100644
--- a/docs/building.sgml
+++ b/docs/building.sgml
@@ -2634,7 +2634,12 @@ Workaround: don't put weird things in string args to <Command>cpp</Command> macr
 
 <Para>
 This section summarises how to get the utilities you need on your
-Win95/98/NT/2000 machine to use CVS and build GHC. Similar notes for installing and running GHC may be found in the user guide. In general, Win95/Win98 behave the same, and WinNT/Win2k behave the same. It is based largely on detailed advice from Sigbj&oslash;rn Finne.
+Win95/98/NT/2000 machine to use CVS and build GHC. Similar notes for
+installing and running GHC may be found in the user guide. In general,
+Win95/Win98 behave the same, and WinNT/Win2k behave the same. It is based
+largely on detailed advice from Sigbj&oslash;rn Finne. You should read the
+GHC installation guide sections on Windows (in the user guide) before
+continuing to read these notes.
 </Para>