diff --git a/include/boost/program_options/detail/value_semantic.hpp b/include/boost/program_options/detail/value_semantic.hpp
index e82d023..06c9849 100644
--- a/include/boost/program_options/detail/value_semantic.hpp
+++ b/include/boost/program_options/detail/value_semantic.hpp
@@ -33,7 +33,7 @@ namespace boost { namespace program_options {
     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;
         }