diff --git a/include/boost/range/value_type.hpp b/include/boost/range/value_type.hpp
index 8b21075..2072d62 100755
--- a/include/boost/range/value_type.hpp
+++ b/include/boost/range/value_type.hpp
@@ -18,9 +18,9 @@
 #include <boost/range/config.hpp>
 #include <boost/range/iterator.hpp>
 
-//#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-//#include <boost/range/detail/value_type.hpp>
-//#else
+#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+#include <boost/range/detail/value_type.hpp>
+#else
 
 #include <boost/iterator/iterator_traits.hpp>
 
@@ -141,6 +141,6 @@ namespace boost
 
 } // namespace boost
 */
-//#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 
 #endif