diff --git a/doc/go1.3.html b/doc/go1.3.html
index feed6480c7..18b3ec65d2 100644
--- a/doc/go1.3.html
+++ b/doc/go1.3.html
@@ -373,7 +373,7 @@ which can be useful information when debugging deadlocks or performance issues.
 
 <p>
 A new package <a href="/pkg/debug/plan9obj/"><code>debug/plan9obj</code></a> was added to the standard library.
-It implements access to Plan 9 <a href="http://plan9.bell-labs.com/magic/man2html/6/a.out">a.out</a> object files.
+It implements access to Plan 9 <a href="https://9p.io/magic/man2html/6/a.out">a.out</a> object files.
 </p>
 
 <h3 id="major_library_changes">Major changes to the library</h3>