diff --git a/core/src/mindustry/entities/comp/BuildingComp.java b/core/src/mindustry/entities/comp/BuildingComp.java
index 034cfa080f..c2adce674c 100644
--- a/core/src/mindustry/entities/comp/BuildingComp.java
+++ b/core/src/mindustry/entities/comp/BuildingComp.java
@@ -1597,7 +1597,12 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     public boolean collision(Bullet other){
         boolean wasDead = health <= 0;
 
-        damage(other.team, other.damage() * other.type().buildingDamageMultiplier);
+        float damage = other.damage() * other.type().buildingDamageMultiplier;
+        if(!other.type.pierceArmor){
+            damage = Damage.applyArmor(damage, block.armor);
+        }
+
+        damage(other.team, damage);
         Events.fire(bulletDamageEvent.set(self(), other));
 
         if(health <= 0 && !wasDead){
@@ -1853,7 +1858,7 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
         if(Mathf.zero(dm)){
             damage = health + 1;
         }else{
-            damage = Damage.applyArmor(damage, block.armor) / dm;
+            damage /= dm;
         }
 
         //TODO handle this better on the client.