diff --git a/include/boost/archive/basic_archive.hpp b/include/boost/archive/basic_archive.hpp
index 8c9f2b92..21645f0c 100644
--- a/include/boost/archive/basic_archive.hpp
+++ b/include/boost/archive/basic_archive.hpp
@@ -282,4 +282,19 @@ BOOST_CLASS_IMPLEMENTATION(boost::archive::object_id_type, primitive_type)
 BOOST_CLASS_IMPLEMENTATION(boost::archive::object_reference_type, primitive_type)
 BOOST_CLASS_IMPLEMENTATION(boost::archive::tracking_type, primitive_type)
 
+#include <boost/serialization/is_bitwise_serializable.hpp>
+
+// set types used internally by the serialization library
+// to be bitwise serializable
+
+BOOST_IS_BITWISE_SERIALIZABLE(boost::archive::library_version_type)
+BOOST_IS_BITWISE_SERIALIZABLE(boost::archive::version_type)
+BOOST_IS_BITWISE_SERIALIZABLE(boost::archive::class_id_type)
+BOOST_IS_BITWISE_SERIALIZABLE(boost::archive::class_id_reference_type)
+BOOST_IS_BITWISE_SERIALIZABLE(boost::archive::class_id_optional_type)
+BOOST_IS_BITWISE_SERIALIZABLE(boost::archive::class_name_type)
+BOOST_IS_BITWISE_SERIALIZABLE(boost::archive::object_id_type)
+BOOST_IS_BITWISE_SERIALIZABLE(boost::archive::object_reference_type)
+BOOST_IS_BITWISE_SERIALIZABLE(boost::archive::tracking_type)
+
 #endif //BOOST_ARCHIVE_BASIC_ARCHIVE_HPP
diff --git a/include/boost/serialization/collection_size_type.hpp b/include/boost/serialization/collection_size_type.hpp
index 10d9adb1..2dd8fa72 100644
--- a/include/boost/serialization/collection_size_type.hpp
+++ b/include/boost/serialization/collection_size_type.hpp
@@ -10,6 +10,7 @@
 #include <boost/serialization/strong_typedef.hpp>
 #include <boost/serialization/level.hpp>
 #include <boost/serialization/split_free.hpp>
+#include <boost/serialization/is_bitwise_serializable.hpp>
 
 namespace boost { 
 namespace serialization {
@@ -37,7 +38,7 @@ public:
         return *this;
     }
     // used for text output
-    operator const base_type () const {
+    operator base_type () const {
         return t;
     }                
     // used for text input
@@ -56,5 +57,6 @@ public:
 } } // end namespace boost::serialization
 
 BOOST_CLASS_IMPLEMENTATION(collection_size_type, primitive_type)
+BOOST_IS_BITWISE_SERIALIZABLE(collection_size_type)
 
 #endif //BOOST_SERIALIZATION_COLLECTION_SIZE_TYPE_HPP