diff --git a/src/field/pokemon.ts b/src/field/pokemon.ts
index 283f90f891c..bf9cc6db42a 100644
--- a/src/field/pokemon.ts
+++ b/src/field/pokemon.ts
@@ -1081,6 +1081,12 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
         (Overrides.OPP_PASSIVE_ABILITY_OVERRIDE !== Abilities.NONE && !this.isPlayer())) {
       return true;
     }
+
+    // Final boss does not have passive
+    if (this.scene.currentBattle?.battleSpec === BattleSpec.FINAL_BOSS && this instanceof EnemyPokemon) {
+      return false;
+    }
+
     return this.passive || this.isBoss();
   }
 
diff --git a/src/test/final_boss.test.ts b/src/test/final_boss.test.ts
index c087bd5ba82..1636b66707b 100644
--- a/src/test/final_boss.test.ts
+++ b/src/test/final_boss.test.ts
@@ -56,6 +56,14 @@ describe("Final Boss", () => {
     expect(game.scene.getEnemyPokemon()!.species.speciesId).not.toBe(Species.ETERNATUS);
   });
 
+  it("should not have passive enabled on Eternatus", async () => {
+    await runToFinalBossEncounter(game, [Species.BIDOOF]);
+
+    const eternatus = game.scene.getEnemyPokemon();
+    expect(eternatus.species.speciesId).toBe(Species.ETERNATUS);
+    expect(eternatus.hasPassive()).toBe(false);
+  });
+
   it.todo("should change form on direct hit down to last boss fragment", () => {});
 });