diff --git a/include/boost/thread/win32/thread_primitives.hpp b/include/boost/thread/win32/thread_primitives.hpp
index 0f34cf99..e991a157 100644
--- a/include/boost/thread/win32/thread_primitives.hpp
+++ b/include/boost/thread/win32/thread_primitives.hpp
@@ -114,11 +114,11 @@ namespace boost
     {
         namespace win32
         {
-#ifdef BOOST_THREAD_WIN32_HAS_GET_TICK_COUNT_64
-            typedef unsigned long long ticks_type;
-#else
-            typedef unsigned long ticks_type;
-#endif
+//#ifdef BOOST_THREAD_WIN32_HAS_GET_TICK_COUNT_64
+//            typedef unsigned long long ticks_type;
+//#else
+//            typedef unsigned long ticks_type;
+//#endif
 # ifdef _WIN64
             typedef unsigned __int64 ulong_ptr;
 # else