diff --git a/include/boost/mpl/next_prior.hpp b/include/boost/mpl/next_prior.hpp
index 2b1a9e7..e42c66a 100644
--- a/include/boost/mpl/next_prior.hpp
+++ b/include/boost/mpl/next_prior.hpp
@@ -14,11 +14,15 @@
 // $Date$
 // $Revision$
 
+#include <boost/mpl/aux_/common_name_wknd.hpp>
 #include <boost/mpl/aux_/na_spec.hpp>
 #include <boost/mpl/aux_/lambda_support.hpp>
 
 namespace boost { namespace mpl {
 
+BOOST_MPL_AUX_COMMON_NAME_WKND(next)
+BOOST_MPL_AUX_COMMON_NAME_WKND(prior)
+
 template<
       typename BOOST_MPL_AUX_NA_PARAM(T)
     >