diff --git a/include/boost/math/distributions.hpp b/include/boost/math/distributions.hpp
index ecbc616a0..9f86644db 100644
--- a/include/boost/math/distributions.hpp
+++ b/include/boost/math/distributions.hpp
@@ -1,12 +1,12 @@
 //  Copyright John Maddock 2006, 2007.
-//  Copyright Paul A. Bristow 2006, 2007, 2009.
+//  Copyright Paul A. Bristow 2006, 2007, 2009, 2010.
 
 //  Use, modification and distribution are subject to the
 //  Boost Software License, Version 1.0. (See accompanying file
 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
 // This file includes *all* the distributions.
-// this may be useful if many are used
+// this *may* be convenient if many are used
 // - to avoid including each distribution individually.
 
 #ifndef BOOST_MATH_DISTRIBUTIONS_HPP
@@ -23,6 +23,7 @@
 #include <boost/math/distributions/fisher_f.hpp>
 #include <boost/math/distributions/gamma.hpp>
 #include <boost/math/distributions/hypergeometric.hpp>
+#include <boost/math/distributions/inverse_gamma.hpp>
 #include <boost/math/distributions/laplace.hpp>
 #include <boost/math/distributions/logistic.hpp>
 #include <boost/math/distributions/lognormal.hpp>