diff --git a/monitor.go b/monitor.go
index 084cfc2..a867896 100644
--- a/monitor.go
+++ b/monitor.go
@@ -201,7 +201,7 @@ func (m *Monitor) Callback() chan any {
 }*/
 
 func (m *Monitor) download(ctx context.Context, k string, v uint64) error {
-	if m.mode != params.LAZY && m.callback != nil {
+	if m.callback != nil {
 		select {
 		case m.callback <- types.NewBitsFlow(k, v):
 		case <-ctx.Done():