diff --git a/src/data/mystery-encounters/encounters/mysterious-chest-encounter.ts b/src/data/mystery-encounters/encounters/mysterious-chest-encounter.ts
index 693d935ae17..75bd80a3d8f 100644
--- a/src/data/mystery-encounters/encounters/mysterious-chest-encounter.ts
+++ b/src/data/mystery-encounters/encounters/mysterious-chest-encounter.ts
@@ -34,6 +34,7 @@ export const MysteriousChestEncounter: MysteryEncounter =
   MysteryEncounterBuilder.withEncounterType(MysteryEncounterType.MYSTERIOUS_CHEST)
     .withEncounterTier(MysteryEncounterTier.COMMON)
     .withSceneWaveRangeRequirement(...CLASSIC_MODE_MYSTERY_ENCOUNTER_WAVES)
+    .withScenePartySizeRequirement(2, 6, true)
     .withAutoHideIntroVisuals(false)
     .withCatchAllowed(true)
     .withIntroSpriteConfigs([