diff --git a/init.lua b/init.lua
index bc5384c..d6a1de7 100644
--- a/init.lua
+++ b/init.lua
@@ -785,13 +785,13 @@ local function create_corridor_section(waypoint, axis, sign, up_or_down, up_or_d
 
 		-- Mob spawner (at center)
 		if place_mob_spawners and tsm_railcorridors.nodes.spawner and not no_spawner and
-				webperlin_major:get3d(p) > 0.3 and webperlin_minor:get3d(p) > 0.5 then
+				webperlin_major:get_3d(p) > 0.3 and webperlin_minor:get_3d(p) > 0.5 then
 			-- Place spawner (if activated in gameconfig),
 			-- enclose in cobwebs and setup the spawner node.
 			local spawner_placed = SetNodeIfCanBuild(p, {name=tsm_railcorridors.nodes.spawner})
 			if spawner_placed then
 				local size = 1
-				if webperlin_major:get3d(p) > 0.5 then
+				if webperlin_major:get_3d(p) > 0.5 then
 					size = 2
 				end
 				if place_cobwebs then
@@ -814,7 +814,7 @@ local function create_corridor_section(waypoint, axis, sign, up_or_down, up_or_d
 				if pr:next(1,5) == 1 then
 					local h = pr:next(0, 2) -- 3 possible cobweb heights
 					local cpos = {x=basepos.x+vek.x, y=basepos.y+h, z=basepos.z+vek.z}
-					if webperlin_major:get3d(cpos) > 0.05 and webperlin_minor:get3d(cpos) > 0.1 then
+					if webperlin_major:get_3d(cpos) > 0.05 and webperlin_minor:get_3d(cpos) > 0.1 then
 						if h == 0 then
 							-- No check neccessary at height offset 0 since the cobweb is on the floor
 							return TryPlaceCobweb(cpos)