diff --git a/nall/windows/guard.hpp b/nall/windows/guard.hpp
index 06e2a37f..66e2fa86 100644
--- a/nall/windows/guard.hpp
+++ b/nall/windows/guard.hpp
@@ -5,12 +5,16 @@
 #define interface WindowsInterface
 
 #undef UNICODE
+#undef WINVER
 #undef WIN32_LEAN_AND_MEAN
+#undef _WIN32_WINNT
 #undef NOMINMAX
 #undef PATH_MAX
 
 #define UNICODE
+#define WINVER 0x0601
 #define WIN32_LEAN_AND_MEAN
+#define _WIN32_WINNT WINVER
 #define NOMINMAX
 #define PATH_MAX 260