diff --git a/code/modules/holiday/halloween.dm b/code/modules/holiday/halloween.dm
index a27db8dd380..91b778158ba 100644
--- a/code/modules/holiday/halloween.dm
+++ b/code/modules/holiday/halloween.dm
@@ -168,7 +168,7 @@
 			step(I,direction)
 		return
 
-/mob/living/simple_animal/shade/howling_ghost/adjustHealth()
+/mob/living/simple_animal/shade/howling_ghost/adjustHealth(amount, updating_health = TRUE, forced = FALSE)
 	. = 0
 
 /mob/living/simple_animal/shade/howling_ghost/CanPass(atom/movable/mover, turf/target)
@@ -228,7 +228,7 @@
 /mob/living/simple_animal/hostile/retaliate/clown/insane/AttackingTarget()
 	return
 
-/mob/living/simple_animal/hostile/retaliate/clown/insane/adjustHealth()
+/mob/living/simple_animal/hostile/retaliate/clown/insane/adjustHealth(amount, updating_health = TRUE, forced = FALSE)
 	. = 0
 	if(prob(5))
 		playsound(loc, 'sound/spookoween/insane_low_laugh.ogg', 300, 1)
diff --git a/code/modules/mining/minebot.dm b/code/modules/mining/minebot.dm
index 15ff372c47f..30a8bddd224 100644
--- a/code/modules/mining/minebot.dm
+++ b/code/modules/mining/minebot.dm
@@ -191,7 +191,7 @@
 	for(var/obj/item/stack/ore/O in contents)
 		O.forceMove(drop_location())
 
-/mob/living/simple_animal/hostile/mining_drone/adjustHealth(amount)
+/mob/living/simple_animal/hostile/mining_drone/adjustHealth(amount, updating_health = TRUE, forced = FALSE)
 	if(mode != MINEDRONE_ATTACK && amount > 0)
 		SetOffenseBehavior()
 	. = ..()
diff --git a/code/modules/mob/living/simple_animal/hostile/jungle/seedling.dm b/code/modules/mob/living/simple_animal/hostile/jungle/seedling.dm
index 8a1cfb7125f..33cf955d132 100644
--- a/code/modules/mob/living/simple_animal/hostile/jungle/seedling.dm
+++ b/code/modules/mob/living/simple_animal/hostile/jungle/seedling.dm
@@ -201,7 +201,7 @@
 		update_icons()
 		Goto(target, move_to_delay, minimum_distance)
 
-/mob/living/simple_animal/hostile/jungle/seedling/adjustHealth()
+/mob/living/simple_animal/hostile/jungle/seedling/adjustHealth(amount, updating_health = TRUE, forced = FALSE)
 	. = ..()
 	if(combatant_state == SEEDLING_STATE_ACTIVE && beam_debuff_target)
 		beam_debuff_target.remove_status_effect(/datum/status_effect/seedling_beam_indicator)