diff --git a/ChangeLog b/ChangeLog
index 16e6c7d8d..644fb67c2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2013-10-02  Dave Arnold  <darnold@adobe.com>
+
+	* src/cff/cf2font.c (cf2_computeDarkening): Initialize darkenAmount.
+
+	This line was lost in commit 89ca1fd6 (from 2013-06-25).  The effect
+	is to use a previous darkening amount when producing an unhinted,
+	unscaled outline.  This can cause autohint samples in ftgrid and
+	ftview to be based on darkened CFF outlines instead of unhinted,
+	undarkened ones.
+
 2013-09-29  Dave Arnold  <darnold@adobe.com>
 
 	Fix Savannah bug #39295.
diff --git a/src/cff/cf2font.c b/src/cff/cf2font.c
index fe454c3a9..2eb77322e 100644
--- a/src/cff/cf2font.c
+++ b/src/cff/cf2font.c
@@ -101,6 +101,7 @@
     /* convenience.                                             */
     CF2_Fixed  stemWidthPer1000, scaledStem;
 
+    *darkenAmount = 0;
 
     if ( boldenAmount == 0 && !stemDarkened )
       return;