diff --git a/nodes.lua b/nodes.lua
index e84826e..a6bc0e2 100644
--- a/nodes.lua
+++ b/nodes.lua
@@ -71,7 +71,7 @@ minetest.register_abm({
 		local data = vm:get_data()
 		add_savannatree(data, a, pos.x, pos.y, pos.z, minp, maxp, PseudoRandom(math.random(1,100000)))
 		vm:set_data(data)
-		vm:write_to_map(data)
+		vm:write_to_map()
 		vm:update_map()
 	end
 })
@@ -160,7 +160,7 @@ minetest.register_abm({
 		local data = vm:get_data()
 		add_pinetree(data, a, pos.x, pos.y, pos.z, minp, maxp, PseudoRandom(math.random(1,100000)), c_air)
 		vm:set_data(data)
-		vm:write_to_map(data)
+		vm:write_to_map()
 		vm:update_map()
 	end
 })
diff --git a/snow.lua b/snow.lua
index b550fd4..687c19c 100644
--- a/snow.lua
+++ b/snow.lua
@@ -51,7 +51,7 @@ minetest.register_globalstep(function(dtime)
 				end
 			end
 			--vm:set_data(data)
-			--vm:write_to_map(data)
+			--vm:write_to_map()
 			--for _, pos in ipairs(to_update) do
 			--	nodeupdate(pos)
 			--end