diff --git a/library/PolyVoxCore/include/SurfaceMesh.inl b/library/PolyVoxCore/include/SurfaceMesh.inl
index 47c39568..ff431cc2 100644
--- a/library/PolyVoxCore/include/SurfaceMesh.inl
+++ b/library/PolyVoxCore/include/SurfaceMesh.inl
@@ -400,6 +400,8 @@ namespace PolyVox
 	polyvox_shared_ptr< SurfaceMesh<VertexType> > extractSubset(SurfaceMesh<VertexType>& inputMesh, std::set<uint8_t> setMaterials)
 	{
 		polyvox_shared_ptr< SurfaceMesh<VertexType> > result(new SurfaceMesh<VertexType>);
+		
+		result->m_Region = inputMesh.m_Region;
 
 		if(inputMesh.m_vecVertices.size() == 0) //FIXME - I don't think we should need this test, but I have seen crashes otherwise...
 		{