diff --git a/code/modules/mob/living/simple_animal/hostile/hostile.dm b/code/modules/mob/living/simple_animal/hostile/hostile.dm
index 0377efd16e..bd4f334476 100644
--- a/code/modules/mob/living/simple_animal/hostile/hostile.dm
+++ b/code/modules/mob/living/simple_animal/hostile/hostile.dm
@@ -427,7 +427,7 @@
 	if(casingtype)
 		var/obj/item/ammo_casing/casing = new casingtype(startloc)
 		playsound(src, projectilesound, 100, 1)
-		casing.fire_casing(targeted_atom, src, null, null, null, ran_zone(), src)
+		casing.fire_casing(targeted_atom, src, null, null, null, ran_zone(), 0, src)
 	else if(projectiletype)
 		var/obj/item/projectile/P = new projectiletype(startloc)
 		playsound(src, projectilesound, 100, 1)