diff --git a/init.lua b/init.lua
index c77e282..96ef359 100644
--- a/init.lua
+++ b/init.lua
@@ -893,7 +893,6 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 	if (do_create or do_apply or do_analyze or fields.add_np_profile or fields.np_profiles) then
 		if fields.offset and fields.scale and fields.seed and fields.spread_x and fields.spread_y and fields.spread_z and fields.octaves and fields.persistence and fields.lacunarity then
 
-			loaded_areas = {}
 			local offset = tonumber(fields.offset)
 			local scale = tonumber(fields.scale)
 			local seed = tonumber(fields.seed)
@@ -986,6 +985,9 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 					if not px or not py or not pz or not size then
 						return
 					end
+					if current_perlin.autogen then
+						loaded_areas = {}
+					end
 					current_perlin.size = size
 					local place_pos = vector.new(px, py, pz)
 					local msg = S("Creating Perlin noise, please wait …")
@@ -996,6 +998,8 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 					elseif msg == false then
 						minetest.log("error", "[perlin_explorer] Error generating Perlin noise nodes!")
 					end
+				elseif do_apply and current_perlin.autogen then
+					loaded_areas = {}
 				end
 			end
 		end