diff --git a/docs/msw/install.txt b/docs/msw/install.txt
index 13ad7cf908..b140c942b9 100644
--- a/docs/msw/install.txt
+++ b/docs/msw/install.txt
@@ -58,9 +58,9 @@ Other add-on packages are available from the wxWindows Web site, such as:
 General installation notes
 --------------------------
 
-Alter your WXWIN environment variable to point to this directory.
-For Cygwin or Mingw32 compilation, make sure WXWIN contains only
-forward slashes.
+Alter your WXWIN environment variable to point to the root directory of the
+wxWindows installation. For Cygwin or Mingw32 compilation, make sure WXWIN
+contains only forward slashes.
 
 If installing from the CVS server, copy include/wx/msw/setup0.h to
 include/wx/msw/setup.h and edit the resulting file to choose