diff --git a/aggregator.go b/aggregator.go
index 7340f3c..9f8da70 100644
--- a/aggregator.go
+++ b/aggregator.go
@@ -160,7 +160,7 @@ func (a *aggregator) aggregate(t time.Time) {
 			}
 			aggregatedTask := a.ga.Aggregate(gname, tasks)
 			ctx, cancel := context.WithDeadline(context.Background(), deadline)
-			if _, err := a.client.EnqueueContext(ctx, aggregatedTask); err != nil {
+			if _, err := a.client.EnqueueContext(ctx, aggregatedTask, Queue(qname)); err != nil {
 				a.logger.Errorf("Failed to enqueue aggregated task (queue=%q, group=%q, setID=%q): %v",
 					qname, gname, aggregationSetID, err)
 				cancel()
diff --git a/server.go b/server.go
index 945a7c3..bbe5d1f 100644
--- a/server.go
+++ b/server.go
@@ -224,8 +224,12 @@ type Config struct {
 
 // GroupAggregator aggregates a group of tasks into one before the tasks are passed to the Handler.
 type GroupAggregator interface {
-	// Aggregate aggregates the given tasks which belong to a same group
+	// Aggregate aggregates the given tasks which belong to a same group with the given groupKey
 	// and returns a new task which is the aggregation of those tasks.
+	//
+	// Use NewTask(typename, payload, opts...) to set any options for the aggregated task.
+	// Queue option will be ignored and the aggregated task will always be enqueued to the same queue
+	// the group belonged.
 	Aggregate(groupKey string, tasks []*Task) *Task
 }