diff --git a/doc/go1.5.html b/doc/go1.5.html
index 23874efff4..3197fd8e90 100644
--- a/doc/go1.5.html
+++ b/doc/go1.5.html
@@ -199,6 +199,8 @@ Programs that do not expect to run with multiple cores may
 break inadvertently.
 They can be updated by removing the restriction or by setting
 <code>GOMAXPROCS</code> explicitly.
+For a more detailed discussion of this change, see
+the <a href="https://golang.org/s/go15gomaxprocs">design document</a>.
 </p>
 
 <h3 id="build">Build</h3>