diff --git a/ChangeLog b/ChangeLog
index f23bbf1..489776d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -6,6 +6,8 @@
approximation of the sinc function over the interval [-3,3].
* Eliminate a small memory leak in LevelizeImageChannel() (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=16951).
+ * Recognize -fx logtwo (reference
+ http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=16958).
2010-08-15 6.6.3-7 Cristy <quetzlzacatenango@image...>
* Throw exception if image size differs for the compare program but the