diff --git a/dungeon_master.lua b/dungeon_master.lua
index eeeee13..39c754e 100644
--- a/dungeon_master.lua
+++ b/dungeon_master.lua
@@ -25,6 +25,7 @@ mobs:register_mob("mobs_monster:dungeon_master", {
 	reach = 3,
 	shoot_interval = 2.2,
 	arrow = "mobs_monster:fireball",
+	friendly_fire = false,
 	shoot_offset = 1,
 	hp_min = 42,
 	hp_max = 75,