diff --git a/utility.htm b/utility.htm
index e0f090f..7b477ce 100644
--- a/utility.htm
+++ b/utility.htm
@@ -81,7 +81,7 @@ CodeWarrior 5.0, and Microsoft Visual C++ 6.0 sp 3.</p>
   <pre>// inside one of your own headers ...
 #include &lt;boost/utility.hpp&gt;
 
-class ResourceLadenFileSystem : noncopyable {
+class ResourceLadenFileSystem : boost::noncopyable {
 ...</pre>
 </blockquote>