diff --git a/doc/ChangeLog.html b/doc/ChangeLog.html
index 6a3a7d9e7..9f0ba349b 100644
--- a/doc/ChangeLog.html
+++ b/doc/ChangeLog.html
@@ -808,6 +808,7 @@
     <LI>Fixed bug #422586: Lose a group on entering a building.
     <LI>Fixed bug #515713: Color didn't cycle continuos in buttons.
     <LI>Fixed bug #520492: Small map crashed with big screen.
+    <LI>Multiple viewports implementation separated completely from the old single-viewport one, reported bugs fixed.
     <LI>+++
     </UL>