diff --git a/doc/go1.21.html b/doc/go1.21.html
index e1f10ef929..f6aa2a9d52 100644
--- a/doc/go1.21.html
+++ b/doc/go1.21.html
@@ -608,11 +608,11 @@ Do not send CLs removing the interior tags from such phrases.
       with <code>//go:</code>) in file headers (before
       the <code>package</code> declaration). These directives are
       available in the new
-      <a href="/pkg/go/build/Package"><code>Package</code></a> fields
-      <a href="/pkg/go/build/Package.Directives"><code>Directives</code></a>,
-      <a href="/pkg/go/build/Package.TestDirectives"><code>TestDirectives</code></a>,
+      <a href="/pkg/go/build#Package"><code>Package</code></a> fields
+      <a href="/pkg/go/build#Package.Directives"><code>Directives</code></a>,
+      <a href="/pkg/go/build#Package.TestDirectives"><code>TestDirectives</code></a>,
       and
-      <a href="/pkg/go/build/Package.XTestDirectives"><code>XTestDirectives</code></a>.
+      <a href="/pkg/go/build#Package.XTestDirectives"><code>XTestDirectives</code></a>.
     </p>
   </dd>
 </dl><!-- go/build -->