diff --git a/sparkdebug/landclear.lua b/sparkdebug/landclear.lua
index 38aa4cf..b1bab6a 100644
--- a/sparkdebug/landclear.lua
+++ b/sparkdebug/landclear.lua
@@ -1,4 +1,4 @@
-local function process(itemstack, curr)
+local function process(itemstack, curr, node)
 	local meta = itemstack:get_meta()
 	local last = meta:to_table().fields
 	if last.x then
@@ -11,7 +11,7 @@ local function process(itemstack, curr)
 		for y = 0,ymax-ymin do
 			for x = xmin,xmax do
 				for z = zmin,zmax do
-					minetest.set_node({x=x,y=ymax-y,z=z}, {name="air"})
+					minetest.set_node({x=x,y=ymax-y,z=z}, {name=node})
 				end
 			end
 		end
@@ -22,6 +22,20 @@ local function process(itemstack, curr)
 	return itemstack
 end
 
+minetest.register_chatcommand("fillblock", {
+								  desc = "Set the fill block for the Land Clear tool",
+								  params = "nodestring",
+								  func = function (name, param)
+									  local player = minetest.get_player_by_name(name)
+									  if player then
+										  player:set_attribute("sparkdebug_clearnode", param)
+										  return true, "It is done."
+									  else
+										  return false, "Player not online."
+									  end
+								  end
+})
+
 minetest.register_tool("sparkdebug:landclear", {
 						   description = "Land Clear",
 						   inventory_image = "landclear.png",
@@ -29,11 +43,11 @@ minetest.register_tool("sparkdebug:landclear", {
 						   range = 50.0,
 						   on_use = function(itemstack, player, pointed_thing)
 							   if pointed_thing["type"] == "node" then
-								   return process(itemstack, pointed_thing.under)
+								   return process(itemstack, pointed_thing.under, player:get_attribute("sparkdebug_clearnode") or "air")
 							   end
 							   return itemstack
 						   end,
 						   on_place = function(itemstack, placer, pointed_thing)
-							   return process(itemstack, placer:get_pos())
+							   return process(itemstack, placer:get_pos(), placer:get_attribute("sparkdebug_clearnode") or "air")
 						   end
 })