diff --git a/Mac/Demo/index.html b/Mac/Demo/index.html
index 57b28fd6255..ce92a9daf3c 100644
--- a/Mac/Demo/index.html
+++ b/Mac/Demo/index.html
@@ -82,7 +82,7 @@ <H2>Table of contents</H2>
 and how to use that module in your python program.
 
 <LI>
-<A HREF="build.html">Building Mac Python from source</A> explains
+<A HREF="building.html">Building Mac Python from source</A> explains
 how to build a PPC or 68K interpreter from a source distribution.
 </UL>