diff --git a/web/service/inbound.go b/web/service/inbound.go
index f75868cb..57157044 100644
--- a/web/service/inbound.go
+++ b/web/service/inbound.go
@@ -610,6 +610,10 @@ func (s *InboundService) DelInbound(id int) (bool, error) {
 		logger.Debug("DelInbound: inbound not found, id:", id)
 	}
 
+	if err := db.Where("inbound_id = ?", id).Delete(&xray.ClientTraffic{}).Error; err != nil {
+		return false, err
+	}
+
 	if err := s.clientService.DetachInbound(db, id); err != nil {
 		return false, err
 	}