diff --git a/experimental/libbox/command_server.go b/experimental/libbox/command_server.go
index 2bd99b8c..ec68b4ca 100644
--- a/experimental/libbox/command_server.go
+++ b/experimental/libbox/command_server.go
@@ -58,16 +58,19 @@ func (s *CommandServer) SetService(newService *BoxService) {
 	if newService != nil {
 		service.PtrFromContext[urltest.HistoryStorage](newService.ctx).SetHook(s.urlTestUpdate)
 		newService.instance.Router().ClashServer().(*clashapi.Server).SetModeUpdateHook(s.modeUpdate)
-		s.savedLines.Init()
-		select {
-		case s.logReset <- struct{}{}:
-		default:
-		}
 	}
 	s.service = newService
 	s.notifyURLTestUpdate()
 }
 
+func (s *CommandServer) ResetLog() {
+	s.savedLines.Init()
+	select {
+	case s.logReset <- struct{}{}:
+	default:
+	}
+}
+
 func (s *CommandServer) notifyURLTestUpdate() {
 	select {
 	case s.urlTestUpdate <- struct{}{}: