diff --git a/include/boost/detail/endian.hpp b/include/boost/detail/endian.hpp
index 9017e76..5f12fbe 100644
--- a/include/boost/detail/endian.hpp
+++ b/include/boost/detail/endian.hpp
@@ -45,7 +45,9 @@
 # define BOOST_BIG_ENDIAN
 # define BOOST_BYTE_ORDER 4321
 #elif defined(__i386__) || defined(__alpha__) \
-   || defined(__ia64)  || defined(__ia64__)
+   || defined(__ia64) || defined(__ia64__) \
+   || defined(_M_IX86) || defined(_M_IA64) \
+   || defined(_M_ALPHA)
 # define BOOST_LITTLE_ENDIAN
 # define BOOST_BYTE_ORDER 1234
 #else