diff --git a/include/boost/ratio.hpp b/include/boost/ratio.hpp
new file mode 100644
index 0000000..096fe62
--- /dev/null
+++ b/include/boost/ratio.hpp
@@ -0,0 +1,14 @@
+//  ratio.hpp  ---------------------------------------------------------------//
+
+//  Copyright 2010 Vicente J. Botet Escriba
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+
+#ifndef BOOST_RATIO_HPP
+#define BOOST_RATIO_HPP
+
+#include <boost/ratio/include.hpp>
+
+#endif  // BOOST_RATIO_HPP