diff --git a/glow/init.lua b/glow/init.lua
index 7dfdc4d..812102e 100644
--- a/glow/init.lua
+++ b/glow/init.lua
@@ -1,12 +1,12 @@
 -- glow/init.lua
 -- mod by john and Zeg9
 
-LIGHT_MAX = 15
+local light = 15
 
 minetest.register_node("glow:stone", {
 	description = "Glowing stone",
 	tile_images = {"glow_stone.png"},
-	light_source = LIGHT_MAX,
+	light_source = light,
 	groups = {cracky=3},
 	sounds = default.node_sound_glass_defaults(),
 })
@@ -14,7 +14,7 @@ minetest.register_node("glow:stone", {
 minetest.register_node("glow:lamp", {
 	description = "Lamp",
 	tile_images = {"glow_stone.png^glow_lamp_frame.png"},
-	light_source = LIGHT_MAX,
+	light_source = light,
 	groups = {cracky=3},
 	sounds = default.node_sound_glass_defaults(),
 })