diff --git a/doc/go1.15.html b/doc/go1.15.html
index 69a20690b9..4b79dee42d 100644
--- a/doc/go1.15.html
+++ b/doc/go1.15.html
@@ -633,6 +633,16 @@ Do not send CLs removing the interior tags from such phrases.
   </dd>
 </dl><!-- fmt -->
 
+<dl id="go/printer"><dt><a href="/pkg/go/printer/">go/printer</a></dt>
+  <dd>
+    <p><!-- CL 231461 -->
+      The new <a href="/pkg/go/printer/#Mode"><code>Mode</code></a>
+      value <a href="/pkg/go/printer/#StdFormat"><code>StdFormat</code></a>
+      directs the printer to apply standard formatting changes while
+      printing the output.
+  </dd>
+</dl><!-- go/printer -->
+
 <dl id="io/ioutil"><dt><a href="/pkg/io/ioutil/">io/ioutil</a></dt>
   <dd>
     <p><!-- CL 212597 -->