diff --git a/code/modules/mob/living/damage_procs.dm b/code/modules/mob/living/damage_procs.dm
index aeab794552e..ed74c02828e 100644
--- a/code/modules/mob/living/damage_procs.dm
+++ b/code/modules/mob/living/damage_procs.dm
@@ -8,7 +8,7 @@
 	Returns
 	standard 0 if fail
 */
-/mob/living/proc/apply_damage(var/damage = 0,var/damagetype = BRUTE, var/def_zone = null, var/blocked = 0, var/soaked = 0, var/used_weapon = null, var/sharp = 0, var/edge = 0)
+/mob/living/proc/apply_damage(var/damage = 0,var/damagetype = BRUTE, var/def_zone = null, var/blocked = 0, var/soaked = 0, var/used_weapon = null, var/sharp = 0, var/edge = 0, var/obj/used_weapon = null)
 	if(Debug2)
 		to_world_log("## DEBUG: apply_damage() was called on [src], with [damage] damage, and an armor value of [blocked].")
 	if(!damage || (blocked >= 100))