diff --git a/services/task/task.go b/services/task/task.go
index f13dfa5ad..f9a6d0c0c 100644
--- a/services/task/task.go
+++ b/services/task/task.go
@@ -131,7 +131,7 @@ func accomplish(action models.Action, taskType models.TaskType) error {
 			Type:   models.GetRewardTypeInstance(config.AwardType),
 		},
 		TargetUserId: userId,
-		RequestId:    fmt.Sprint(action.ID),
+		RequestId:    fmt.Sprintf("%d_%d", action.ID, userId),
 		OperateType:  models.OperateTypeIncrease,
 		RejectPolicy: models.FillUp,
 	})