Index: boost/program_options/detail/value_semantic.hpp
===================================================================
--- boost/program_options/detail/value_semantic.hpp	(revision 57783)
+++ boost/program_options/detail/value_semantic.hpp	(working copy)
@@ -33,7 +33,7 @@
     void 
     typed_value<T, charT>::notify(const boost::any& value_store) const
     {
-        const T* value = boost::any_cast<const T>(&value_store);
+        const T* value = boost::any_cast<T>(&value_store);
         if (m_store_to) {
             *m_store_to = *value;
         }