diff --git a/ChangeLog b/ChangeLog
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+++ b/ChangeLog
@@ -1,5 +1,6 @@
 2009-10-01  6.5.6-7 Cristy  <quetzlzacatenango@image...>
   * Don't use group4 compression if the image is truecolor.
+  * If image is gray, write grayscale DPX images.
 
 2009-09-25  6.5.6-6 Cristy  <quetzlzacatenango@image...>
   * Permit percentage of hue for HSL (e.g. hsl(12%,...)).