diff --git a/src/lib/PlayerVsNPCCalc.ts b/src/lib/PlayerVsNPCCalc.ts
index 0ebc7a94..f666206f 100644
--- a/src/lib/PlayerVsNPCCalc.ts
+++ b/src/lib/PlayerVsNPCCalc.ts
@@ -255,6 +255,9 @@ export default class PlayerVsNPCCalc extends BaseCalc {
     if (this.wearing(['Arclight', 'Emberlight']) && mattrs.includes(MonsterAttribute.DEMON)) {
       attackRoll = this.trackAddFactor(DetailKey.PLAYER_ACCURACY_DEMONBANE, attackRoll, this.demonbaneFactor(70));
     }
+    if (this.wearing(['Silverlight', 'Darklight']) && mattrs.includes(MonsterAttribute.DEMON)) {
+      attackRoll = this.trackAddFactor(DetailKey.PLAYER_ACCURACY_DEMONBANE, attackRoll, this.demonbaneFactor(60));
+    }
     if (this.wearing(['Bone claws', 'Burning claws']) && mattrs.includes(MonsterAttribute.DEMON)) {
       attackRoll = this.trackAddFactor(DetailKey.PLAYER_ACCURACY_DEMONBANE, attackRoll, this.demonbaneFactor(5));
     }