diff --git a/changelog.html b/changelog.html
index 8372880990047660dc1ee1c0c8be1e9b3f27cdfa..6090b3604b0912fcf19e6a3b523501f55c9f9843 100644
--- a/changelog.html
+++ b/changelog.html
@@ -55,7 +55,9 @@ Upcoming changes</a>
 <!-- Record your changes in the trunk here. -->
 <div id="trunk" style="display:none"><!--=TRUNK-BEGIN=-->
 <ul class=image>
-  <li class=>
+  <li class=bug>
+    Next build link was not reliably available from a previous build after starting a new one.
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-20662">issue 20662</a>)
 </ul>
 </div><!--=TRUNK-END=-->