diff --git a/utopia-gamification/src/main/kotlin/tw/waterballsa/utopia/utopiagamification/quest/listeners/presenters/ClaimMissionRewardPresenter.kt b/utopia-gamification/src/main/kotlin/tw/waterballsa/utopia/utopiagamification/quest/listeners/presenters/ClaimMissionRewardPresenter.kt
index 2073f9a0..91c94714 100644
--- a/utopia-gamification/src/main/kotlin/tw/waterballsa/utopia/utopiagamification/quest/listeners/presenters/ClaimMissionRewardPresenter.kt
+++ b/utopia-gamification/src/main/kotlin/tw/waterballsa/utopia/utopiagamification/quest/listeners/presenters/ClaimMissionRewardPresenter.kt
@@ -22,7 +22,7 @@ class ClaimMissionRewardPresenter : ClaimMissionRewardUsecase.Presenter {
         )
     }
 
-    class ViewModel(
+    data class ViewModel(
         val message: String,
         val nextQuestId: Int?
     )