diff --git a/Source/CombatExtended/CombatExtended/SecondaryDamage.cs b/Source/CombatExtended/CombatExtended/SecondaryDamage.cs
index c55b0587f7..545b7f0b24 100644
--- a/Source/CombatExtended/CombatExtended/SecondaryDamage.cs
+++ b/Source/CombatExtended/CombatExtended/SecondaryDamage.cs
@@ -10,7 +10,7 @@ namespace CombatExtended
 {
     public class SecondaryDamage
     {
-        private const float SecExplosionPenPerDmg = 2;
+        private const float SecExplosionPenPerDmg = 0.8; // 2x ExplosiveArmorPenetrationMultiplier
 
         public DamageDef def;
         public int amount;