diff --git a/mods/stairs/init.lua b/mods/stairs/init.lua
index acf394a..a74bed4 100644
--- a/mods/stairs/init.lua
+++ b/mods/stairs/init.lua
@@ -84,10 +84,12 @@ function stairs.register_stair(subname, recipeitem, groups, images, description,
 		groups = new_groups,
 		sounds = sounds,
 		node_box = {
+			-- This stairs nodebox is a bit unusual.
+			-- This is done in a way that it completely blocks off the laser
 			type = "fixed",
 			fixed = {
-				{-0.5, -0.5, -0.5, 0.5, 0.0, 0.5},
-				{-0.5, 0.0, 0.0, 0.5, 0.5, 0.5},
+				{-0.5, -0.5, -0.5, 0.5, 1/16, 0.5},
+				{-0.5, 1/16, -1/16, 0.5, 0.5, 0.5},
 			},
 		},
 		on_place = function(itemstack, placer, pointed_thing)