diff --git a/include/boost/detail/winapi/config.hpp b/include/boost/detail/winapi/config.hpp
index a21e552..2b0cdfb 100644
--- a/include/boost/detail/winapi/config.hpp
+++ b/include/boost/detail/winapi/config.hpp
@@ -27,6 +27,7 @@
 #define BOOST_WINAPI_VERSION_LONGHORN 0x0600
 #define BOOST_WINAPI_VERSION_WIN7 0x0601
 #define BOOST_WINAPI_VERSION_WIN8 0x0602
+#define BOOST_WINAPI_VERSION_WINBLUE 0x0603
 
 #if !defined(BOOST_USE_WINAPI_VERSION)
 #if defined(_WIN32_WINNT)