diff --git a/docs/CFEBuildInstrs.html b/docs/CFEBuildInstrs.html
index 86d239659de..eb7a318775d 100644
--- a/docs/CFEBuildInstrs.html
+++ b/docs/CFEBuildInstrs.html
@@ -126,7 +126,9 @@ of permissions. Specify a path into which LLVM can be installed (e.g.
  % set path = ( `cd llvm/Debug/bin && pwd` $path )
 </pre></li>
 
-<li><p>Unpack the C/C++ front-end source into cfrontend/src.</p></li>
+<li><p>Unpack the C/C++ front-end source into cfrontend/src, either by
+       untar'ing an llvm-gcc.tar.gz file or checking out CVS into this
+       directory.</p></li>
 
 <li><p>Make "build" and "install" directories as siblings of the "src" tree.</p>
 <pre>