diff --git a/doc/dirs.dox b/doc/dirs.dox
--- a/doc/dirs.dox
+++ b/doc/dirs.dox
@@ -2,7 +2,7 @@
  *
  * This file is a part of LEMON, a generic C++ optimization library.
  *
- * Copyright (C) 2003-2008
+ * Copyright (C) 2003-2009
  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
  * (Egervary Research Group on Combinatorial Optimization, EGRES).
  *
@@ -71,7 +71,7 @@
 \dir bits
 \brief Auxiliary tools for implementation.
 
-This directory contains some auxiliary classes for implementing graphs, 
+This directory contains some auxiliary classes for implementing graphs,
 maps and some other classes.
 As a user you typically don't have to deal with these files.
 */