diff --git a/mods/mobs/dungeonmaster.lua b/mods/mobs/dungeonmaster.lua
index 7d9dc230..b2d7444c 100644
--- a/mods/mobs/dungeonmaster.lua
+++ b/mods/mobs/dungeonmaster.lua
@@ -64,7 +64,7 @@ mobs:register_mob("mobs:dungeon_master", {
 	shoot_offset = 0,
 	blood_texture = "mobs_blood.png",
 })
-mobs:register_spawn("mobs:dungeon_master", {"default:stone"}, 2, -1, 6000, 1, -70)
+mobs:register_spawn("mobs:dungeon_master", {"default:stone, nether:netherrack"}, 2, -1, 6000, 1, -70)
 
 -- Fireball (weapon)
 
diff --git a/mods/mobs/mese_monster.lua b/mods/mobs/mese_monster.lua
index c7e8aaa7..b042f442 100644
--- a/mods/mobs/mese_monster.lua
+++ b/mods/mobs/mese_monster.lua
@@ -66,7 +66,7 @@ mobs:register_mob("mobs:mese_monster", {
 	shoot_offset = 2,
 	blood_texture = "default_mese_crystal_fragment.png",
 })
-mobs:register_spawn("mobs:mese_monster", {"default:stone", "nether:netherrack"}, 3, -1, 4000, 1, -20)
+mobs:register_spawn("mobs:mese_monster", {"default:stone", }, 3, -1, 5000, 1, -20)
 
 -- Mese Monster Crystal Shards (weapon)