diff --git a/modules/octree.lua b/modules/octree.lua
index cf78a59..81303c1 100644
--- a/modules/octree.lua
+++ b/modules/octree.lua
@@ -9,7 +9,7 @@ octree.__index = octree
 -- TODO: ray-octree intersection - find all nodes a ray intersects with, possibly given a distance limit
 -- TODO: ability to store tables would be nice!
 
-function new()
+local function new()
   local t = { 
 		root = {
 			size = 1, 
diff --git a/modules/quadtree.lua b/modules/quadtree.lua
index 49e8595..7a0e183 100644
--- a/modules/quadtree.lua
+++ b/modules/quadtree.lua
@@ -4,7 +4,7 @@ local quadtree = {}
 
 quadtree.__index = quadtree
 
-function new()
+local function new()
   local t = { 
 		root = {
 			size = 1,