diff --git a/stairsplus/common.lua b/stairsplus/common.lua
index a7134b2..4f99535 100644
--- a/stairsplus/common.lua
+++ b/stairsplus/common.lua
@@ -30,6 +30,7 @@ stairsplus.register_single = function(category, alternate, info, modname, subnam
 	end
 	def.paramtype = "light"
 	def.paramtype2 = def.paramtype2 or "facedir"
+	def.place_param2 = nil
 	def.on_place = minetest.rotate_node
 	if category ~= "slab" then
 		def.description = S("%s " .. descriptions[category]):format(fields.description)
@@ -58,4 +59,4 @@ stairsplus.register_single = function(category, alternate, info, modname, subnam
 	end
 	minetest.register_node(":" ..modname.. ":" .. category .. "_" .. subname .. alternate, def)
 	stairsplus.register_recipes(category, alternate, modname, subname, recipeitem)
-end
\ No newline at end of file
+end