diff --git a/doc/go1.14.html b/doc/go1.14.html
index ff42e05155..e2ac1672db 100644
--- a/doc/go1.14.html
+++ b/doc/go1.14.html
@@ -482,6 +482,18 @@ TODO
 
 </dl><!-- encoding/json -->
 
+<dl id="log"><dt><a href="/pkg/log/">log</a></dt>
+  <dd>
+    <p><!-- CL 186182 -->
+      The
+      new <a href="https://tip.golang.org/pkg/log/#pkg-constants"><code>Lmsgprefix</code></a>
+      flag may be used to tell the logging functions to emit the
+      optional output prefix immediately before the log message rather
+      than at the start of the line.
+    </p>
+  </dd>
+</dl><!-- log -->
+
 <dl id="go/doc"><dt><a href="/go/doc/">go/doc</a></dt>
   <dd>
     <p><!-- CL 204830 -->