diff --git a/ou/include/ou/atomic.h b/ou/include/ou/atomic.h
index 2f90a70..33e0ab9 100644
--- a/ou/include/ou/atomic.h
+++ b/ou/include/ou/atomic.h
@@ -397,6 +397,7 @@ END_NAMESPACE_OU();
 
 #include <windows.h>
 #include <stddef.h>
+#include <intrin.h>
 
 
 BEGIN_NAMESPACE_OU();
@@ -574,7 +575,6 @@ static _OU_ALWAYSINLINE bool _OU_CONVENTION_API
 
 #define __OU_ATOMIC_READREORDERBARRIER_FUNCTION_DEFINED
 
-#include <intrin.h>
 
 static _OU_ALWAYSINLINE void _OU_CONVENTION_API 
 /*void */AtomicReadReorderBarrier()