diff --git a/src/battle-scene.ts b/src/battle-scene.ts
index 2c46dd667f3..31c41a4bdba 100644
--- a/src/battle-scene.ts
+++ b/src/battle-scene.ts
@@ -1960,7 +1960,7 @@ export default class BattleScene extends SceneBase {
       const difficultyWaveIndex = this.gameMode.getWaveForDifficulty(this.currentBattle.waveIndex);
       const isFinalBoss = this.gameMode.isWaveFinal(this.currentBattle.waveIndex);
       let chances = Math.ceil(difficultyWaveIndex / 10);
-      if (this.getPlayerPokemon().getAbility().hasAttr(BonusItemChance)) {
+      if (this.getPlayerPokemon().getAbility().hasAttr(BonusItemChance) || this.getPlayerPokemon().getPassiveAbility().hasAttr(BonusItemChance)) {
         chances += Math.floor(chances * 1.2);
       }
       if (isFinalBoss) {
diff --git a/src/data/ability.ts b/src/data/ability.ts
index 4b00c5c0448..660936d24a8 100755
--- a/src/data/ability.ts
+++ b/src/data/ability.ts
@@ -2015,6 +2015,10 @@ export class BonusCritAbAttr extends AbAttr {
  * This is used in battle-scene.ts in generateEnemyModifiers.
  */
 export class BonusItemChance extends AbAttr {
+  constructor() {
+    super(false);
+  }
+
   apply(pokemon: Pokemon, passive: boolean, cancelled: Utils.BooleanHolder, args: any[]): boolean | Promise<boolean> {
     return true;
   }
@@ -3512,7 +3516,7 @@ export function initAbilities() {
       .attr(SuppressWeatherEffectAbAttr, true),
     new Ability(Abilities.COMPOUND_EYES, 3)
       .attr(BattleStatMultiplierAbAttr, BattleStat.ACC, 1.3)
-      .attr(BonusItemChance, false),
+      .attr(BonusItemChance),
     new Ability(Abilities.INSOMNIA, 3)
       .attr(StatusEffectImmunityAbAttr, StatusEffect.SLEEP)
       .attr(BattlerTagImmunityAbAttr, BattlerTagType.DROWSY)
@@ -3788,7 +3792,7 @@ export function initAbilities() {
       .attr(MoveAbilityBypassAbAttr),
     new Ability(Abilities.SUPER_LUCK, 4)
       .attr(BonusCritAbAttr)
-      .attr(BonusItemChance, false),
+      .attr(BonusItemChance),
     new Ability(Abilities.AFTERMATH, 4)
       .attr(PostFaintContactDamageAbAttr,4)
       .bypassFaint(),