diff --git a/changelog.html b/changelog.html
index 3cebe66db2a2..2cc4b8a3b4d2 100644
--- a/changelog.html
+++ b/changelog.html
@@ -73,6 +73,9 @@
   <li class="bug">
     Fixed <code>NullPointerException</code> when a build triggering returns null cause
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-20499">issue 20499</a>)
+  <li class="bug">
+    Fixed <code>NullPointerException</code> on plugin installations when invalid update center is set
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-20031">issue 20031</a>)  
 </ul>
 </div><!--=TRUNK-END=-->