diff --git a/include/boost/system/detail/error_category_impl.hpp b/include/boost/system/detail/error_category_impl.hpp
index 904a3a6..0c4593f 100644
--- a/include/boost/system/detail/error_category_impl.hpp
+++ b/include/boost/system/detail/error_category_impl.hpp
@@ -143,7 +143,7 @@ inline void error_category::init_stdcat() const
 
     if( sc_init_.load( std::memory_order_acquire ) == 0 )
     {
-        ::new( static_cast<void*>( stdcat_ ) ) boost::system::detail::std_category( this, 0 );
+        ::new( static_cast<void*>( stdcat_ ) ) boost::system::detail::std_category( this, system::detail::id_wrapper<0>() );
         sc_init_.store( 1, std::memory_order_release );
     }
 }
@@ -160,7 +160,7 @@ inline BOOST_NOINLINE error_category::operator std::error_category const & () co
 // This condition must be the same as the one in error_condition.hpp
 #if defined(BOOST_SYSTEM_AVOID_STD_GENERIC_CATEGORY)
 
-        static const boost::system::detail::std_category generic_instance( this, 0x1F4D3 );
+        static const boost::system::detail::std_category generic_instance( this, system::detail::id_wrapper<0x1F4D3>() );
         return generic_instance;
 
 #else
@@ -175,7 +175,7 @@ inline BOOST_NOINLINE error_category::operator std::error_category const & () co
 // This condition must be the same as the one in error_code.hpp
 #if defined(BOOST_SYSTEM_AVOID_STD_SYSTEM_CATEGORY)
 
-        static const boost::system::detail::std_category system_instance( this, 0x1F4D7 );
+        static const boost::system::detail::std_category system_instance( this, system::detail::id_wrapper<0x1F4D7>() );
         return system_instance;
 
 #else
diff --git a/include/boost/system/detail/std_category.hpp b/include/boost/system/detail/std_category.hpp
index 2b98aa7..68073c1 100644
--- a/include/boost/system/detail/std_category.hpp
+++ b/include/boost/system/detail/std_category.hpp
@@ -11,6 +11,7 @@
 // See library home page at http://www.boost.org/libs/system
 
 #include <boost/system/detail/error_category.hpp>
+#include <boost/config.hpp>
 #include <system_error>
 
 //
@@ -24,6 +25,8 @@ namespace system
 namespace detail
 {
 
+template<unsigned Id> struct id_wrapper {};
+
 class BOOST_SYMBOL_VISIBLE std_category: public std::error_category
 {
 private:
@@ -39,20 +42,22 @@ public:
 
 public:
 
-    explicit std_category( boost::system::error_category const * pc, unsigned id ): pc_( pc )
+    template<unsigned Id>
+    explicit std_category( boost::system::error_category const * pc, id_wrapper<Id> ): pc_( pc )
     {
-        if( id != 0 )
-        {
 #if defined(_MSC_VER) && defined(_CPPLIB_VER) && _MSC_VER >= 1900 && _MSC_VER < 2000
 
-            // Poking into the protected _Addr member of std::error_category
-            // is not a particularly good programming practice, but what can
-            // you do
+        // We used to assign to the protected _Addr member of std::error_category
+        // here when Id != 0, but this should never happen now because this code
+        // path is no longer used
 
-            _Addr = id;
+#if !defined(BOOST_NO_CXX11_STATIC_ASSERT)
+
+        static_assert( Id == 0, "This constructor should only be called with Id == 0 under MS STL 14.0+" );
+
+#endif
 
 #endif
-        }
     }
 
     const char * name() const BOOST_NOEXCEPT BOOST_OVERRIDE