diff --git a/test/moves/grudge.test.ts b/test/moves/grudge.test.ts
index d9e2f4f8320..cc75024bfbf 100644
--- a/test/moves/grudge.test.ts
+++ b/test/moves/grudge.test.ts
@@ -1,5 +1,6 @@
 import { AbilityId } from "#enums/ability-id";
 import { BattlerIndex } from "#enums/battler-index";
+import { BattlerTagType } from "#enums/battler-tag-type";
 import { MoveId } from "#enums/move-id";
 import { SpeciesId } from "#enums/species-id";
 import { WeatherType } from "#enums/weather-type";
@@ -59,6 +60,8 @@ describe("Moves - Grudge", () => {
     await game.setTurnOrder([BattlerIndex.PLAYER, BattlerIndex.ENEMY]);
     await game.toNextTurn();
 
+    expect(ratatta).toHaveBattlerTag(BattlerTagType.GRUDGE);
+
     game.move.use(MoveId.GUILLOTINE);
     await game.move.forceEnemyMove(MoveId.SPLASH);
     await game.setTurnOrder([BattlerIndex.PLAYER, BattlerIndex.ENEMY]);