diff --git a/library/PolyVoxCore/include/PolyVoxCore/Voxel.h b/library/PolyVoxCore/include/PolyVoxCore/Voxel.h
index d76b3365..6474d71d 100644
--- a/library/PolyVoxCore/include/PolyVoxCore/Voxel.h
+++ b/library/PolyVoxCore/include/PolyVoxCore/Voxel.h
@@ -68,8 +68,8 @@ namespace PolyVox
 	class VoxelTypeTraits
 	{
 	public:
-		const static Type MinDensity;
-		const static Type MaxDensity;
+		const static bool HasDensity;
+		const static bool HasMaterial;
 	};
 
 }
diff --git a/library/PolyVoxCore/source/Voxel.cpp b/library/PolyVoxCore/source/Voxel.cpp
index 00770b82..c271e278 100644
--- a/library/PolyVoxCore/source/Voxel.cpp
+++ b/library/PolyVoxCore/source/Voxel.cpp
@@ -26,7 +26,7 @@ freely, subject to the following restrictions:
 namespace PolyVox
 {
 	template<typename Type>
-	const Type VoxelTypeTraits<Type>::MinDensity = 0;
+	const bool VoxelTypeTraits<Type>::HasDensity = false;
 	template<typename Type>
-	const Type VoxelTypeTraits<Type>::MaxDensity = 0;
+	const bool VoxelTypeTraits<Type>::HasMaterial = false;
 }
\ No newline at end of file