diff --git a/include/boost/type_traits/object_traits.hpp b/include/boost/type_traits/object_traits.hpp
index 43f4656..867b3a5 100644
--- a/include/boost/type_traits/object_traits.hpp
+++ b/include/boost/type_traits/object_traits.hpp
@@ -221,7 +221,7 @@ namespace detail
 
           BOOST_STATIC_CONSTANT(
               bool, value =
-              sizeof(is_POD_array(help()).instance()) > 1);
+              sizeof(is_POD_array(help()).instance()) == sizeof(::boost::type_traits::yes_type));
       };
   };
 }