diff --git a/internal/querycoord/task.go b/internal/querycoord/task.go
index 549aeb8a8ceba49171365b729b20320640a516a2..9ec4bf6cf9c7f00ef1f83d5bf0a3ac6524eda349 100644
--- a/internal/querycoord/task.go
+++ b/internal/querycoord/task.go
@@ -238,6 +238,7 @@ func (bt *BaseTask) rollBack(ctx context.Context) []task {
 }
 
 //************************grpcTask***************************//
+// LoadCollectionTask will load all the data of this collection to query nodes
 type LoadCollectionTask struct {
 	*BaseTask
 	*querypb.LoadCollectionRequest