diff --git a/ChangeLog b/ChangeLog
index d6d3aba..0e289fa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -15,6 +15,8 @@
     rose_tile_%[filename:tile].gif.
   * Use 64-bit types when compiling with the 64-bit Visual C++ compiler under
     Windows.
+  * Prevent MNG divide by zero (refererce
+    http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=16320).
 
 2010-05-23  6.6.2.0 Anthony Thyssen <A.Thyssen@griffith...>
   * Third Re-write of MorphologyApply() to better handle compound methods.