diff --git a/library/PolyVoxCore/include/PolyVoxCore/DefaultIsQuadNeeded.h b/library/PolyVoxCore/include/PolyVoxCore/DefaultIsQuadNeeded.h
index 5775c4ba..81ddb9e5 100644
--- a/library/PolyVoxCore/include/PolyVoxCore/DefaultIsQuadNeeded.h
+++ b/library/PolyVoxCore/include/PolyVoxCore/DefaultIsQuadNeeded.h
@@ -24,7 +24,7 @@ freely, subject to the following restrictions:
 #ifndef __PolyVox_DefaultIsQuadNeeded_H__
 #define __PolyVox_DefaultIsQuadNeeded_H__
 
-#include <cstdint>
+#include "PolyVoxCore/Impl/TypeDef.h"
 
 namespace PolyVox
 {