diff --git a/ImageMagick.changes b/ImageMagick.changes
index 1932cdb..3ac88f8 100644
--- a/ImageMagick.changes
+++ b/ImageMagick.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Sep 30 13:38:14 UTC 2013 - pgajdos@suse.com
+
+- setting quantum depth to 16 [bnc#840825]
+
 -------------------------------------------------------------------
 Mon Sep 30 13:23:05 UTC 2013 - pgajdos@suse.com
 
diff --git a/ImageMagick.spec b/ImageMagick.spec
index 1c61b48..a043111 100644
--- a/ImageMagick.spec
+++ b/ImageMagick.spec
@@ -47,7 +47,7 @@ BuildRequires:  pkgconfig
 
 %define mfr_version   6.8.6
 %define mfr_revision  9
-%define quantum_depth 8
+%define quantum_depth 16
 %define source_version %{mfr_version}-%{mfr_revision}
 %define clibver   1
 %define cxxlibver 2
@@ -417,6 +417,7 @@ HTML documentation for ImageMagick library and scene examples.
 
 
 
+
 
 
 %changelog