diff --git a/library/PolyVoxCore/include/PolyVoxCore/Impl/Array2D.h b/library/PolyVoxCore/include/PolyVoxCore/Impl/Array2D.h
index b6713ae9..062e61e0 100644
--- a/library/PolyVoxCore/include/PolyVoxCore/Impl/Array2D.h
+++ b/library/PolyVoxCore/include/PolyVoxCore/Impl/Array2D.h
@@ -73,6 +73,10 @@ namespace PolyVox
 
 	private:
 
+		// These are private to avoid accidental copying.
+		Array2D<ElementType>(const Array2D<ElementType>& rhs);
+		Array2D<ElementType>& operator=(const Array2D<ElementType>& rhs);
+
 		uint32_t m_uWidth;
 		uint32_t m_uHeight;
 		ElementType* m_pData;