diff --git a/library/PolyVoxCore/include/PolyVoxImpl/MarchingCubesTables.h b/library/PolyVoxCore/include/PolyVoxImpl/MarchingCubesTables.h
index 59745a82..da199fcd 100644
--- a/library/PolyVoxCore/include/PolyVoxImpl/MarchingCubesTables.h
+++ b/library/PolyVoxCore/include/PolyVoxImpl/MarchingCubesTables.h
@@ -28,8 +28,8 @@ freely, subject to the following restrictions:
 
 namespace PolyVox
 {
-	extern POLYVOX_API int edgeTable[256];
-	extern POLYVOX_API int triTable[256][16];
+	extern const POLYVOX_API int edgeTable[256];
+	extern const POLYVOX_API int triTable[256][16];
 }
 
 #endif
diff --git a/library/PolyVoxCore/source/PolyVoxImpl/MarchingCubesTables.cpp b/library/PolyVoxCore/source/PolyVoxImpl/MarchingCubesTables.cpp
index b9175671..c0e069f6 100644
--- a/library/PolyVoxCore/source/PolyVoxImpl/MarchingCubesTables.cpp
+++ b/library/PolyVoxCore/source/PolyVoxImpl/MarchingCubesTables.cpp
@@ -30,8 +30,8 @@ freely, subject to the following restrictions:
 
 namespace PolyVox
 {
-	int edgeTable[256]=
-	{				
+	const int edgeTable[256]=
+	{
 		0x000, 0x109, 0x203, 0x30a, 0x80c, 0x905, 0xa0f, 0xb06,
 		0x406, 0x50f, 0x605, 0x70c, 0xc0a, 0xd03, 0xe09, 0xf00,
 		0x190, 0x099, 0x393, 0x29a, 0x99c, 0x895, 0xb9f, 0xa96,
@@ -66,7 +66,7 @@ namespace PolyVox
 		0xb06, 0xa0f, 0x905, 0x80c, 0x30a, 0x203, 0x109, 0x000
 	};
 
-	int triTable[256][16] =
+	const int triTable[256][16] =
 	{
 		{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, },
 		{ 0,  8,  3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, },