diff --git a/component/dns/dns.go b/component/dns/dns.go
index 71096e6..e2b8358 100644
--- a/component/dns/dns.go
+++ b/component/dns/dns.go
@@ -73,6 +73,9 @@ func New(log *logrus.Logger, dns *config.Dns, opt *NewOption) (s *Dns, err error
 		}
 		upstreamName2Id[tag] = uint8(len(s.upstream))
 		s.upstream = append(s.upstream, r)
+		// Init immediately to avoid DNS leaking in the very beginning because param control_plane_dns_routing will
+		// be set in callback.
+		go r.GetUpstream()
 	}
 	// Optimize routings.
 	if dns.Routing.Request.Rules, err = routing.ApplyRulesOptimizers(dns.Routing.Request.Rules,