--- a/doc/index.rst	Fri Dec 03 11:26:12 2010 -0800
+++ b/doc/index.rst	Wed Dec 08 10:29:26 2010 -0800
@@ -43,6 +43,10 @@
 :ref:`Download <download>` the software, or read a :ref:`tutorial` to
 get acquainted with its structure.
 
+The library is distributed under the GPL_ license.
+
+.. _GPL: http://www.gnu.org/licenses/gpl.html
+
 .. include::    substitutions.aux