--- a/master/render.html	Mon Aug 20 10:05:13 2012 +1000
+++ b/master/render.html	Mon Aug 20 10:05:43 2012 +1000
@@ -113,7 +113,7 @@
 temporary canvas. The modified temporary canvas is composited
 into the background, taking into account any group-level
 <a href="masking.html#Masking">masking</a> and
-<a href="masking.html#OpacityProperty">opacity</a> settings on the
+<a href="masking.html#ObjectAndGroupOpacityProperties">opacity</a> settings on the
 group.</p>
 
 <h2 id="Elements">How elements are rendered</h2>