diff --git a/magick/xml-tree.h b/magick/xml-tree.h
index 04cea2d..03ba48e 100644
--- a/magick/xml-tree.h
+++ b/magick/xml-tree.h
@@ -1,5 +1,5 @@
 /*
-  Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization
+  Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization
   dedicated to making software imaging solutions freely available.
 
   You may not use this file except in compliance with the License.