diff --git a/include/boost/array.hpp b/include/boost/array.hpp
index 3ac0ffc..210c072 100644
--- a/include/boost/array.hpp
+++ b/include/boost/array.hpp
@@ -373,7 +373,7 @@ namespace boost {
 
    // Specific for boost::array: simply returns its elems data member.
    template <typename T, std::size_t N>
-   typename const detail::c_array<T,N>::type& get_c_array(const boost::array<T,N>& arg)
+   typename detail::c_array<T,N>::type const& get_c_array(const boost::array<T,N>& arg)
    {
        return arg.elems;
    }