diff --git a/tunnel/statistic/manager.go b/tunnel/statistic/manager.go
index 08747118..0b309299 100644
--- a/tunnel/statistic/manager.go
+++ b/tunnel/statistic/manager.go
@@ -114,10 +114,8 @@ func (m *Manager) handle() {
 	ticker := time.NewTicker(time.Second)
 
 	for range ticker.C {
-		m.uploadBlip.Store(m.uploadTemp.Load())
-		m.uploadTemp.Store(0)
-		m.downloadBlip.Store(m.downloadTemp.Load())
-		m.downloadTemp.Store(0)
+		m.uploadBlip.Store(m.uploadTemp.Swap(0))
+		m.downloadBlip.Store(m.downloadTemp.Swap(0))
 	}
 }