diff --git a/OpenRA.Game/Traits/Health.cs b/OpenRA.Game/Traits/Health.cs
index d017e08f67..0a30982818 100755
--- a/OpenRA.Game/Traits/Health.cs
+++ b/OpenRA.Game/Traits/Health.cs
@@ -79,9 +79,9 @@ namespace OpenRA.Traits
 			/* apply the damage modifiers, if we have any. */
             var modifier = (float)self.TraitsImplementing<IDamageModifier>()
 				.Concat(self.Owner.PlayerActor.TraitsImplementing<IDamageModifier>())
-				.Select(t => t.GetDamageModifier(attacker, warhead)).Product();
-
-			damage = (int)(damage * modifier);
+				.Select(t => t.GetDamageModifier(attacker, warhead)).Product();
+
+			damage = damage > 0 ? (int)(damage * modifier) : damage;
 			hp = Exts.Clamp(hp - damage, 0, MaxHP);
 
 			var ai = new AttackInfo