diff --git a/code/game/objects/obj_defense.dm b/code/game/objects/obj_defense.dm
index 2d99f0e0..e8c13b45 100644
--- a/code/game/objects/obj_defense.dm
+++ b/code/game/objects/obj_defense.dm
@@ -32,7 +32,7 @@
 	if(damage_flag)
 		armor_protection = armor.getRating(damage_flag)
 	if(armor_protection)		//Only apply weak-against-armor/hollowpoint effects if there actually IS armor.
-		armor_protection = CLAMP(armor_protection - armour_penetration, 0, 100)
+		armor_protection = clamp(armor_protection - armour_penetration, 0, 100)
 	return round(damage_amount * (100 - armor_protection)*0.01, DAMAGE_PRECISION)
 
 //the sound played when the obj is damaged.