diff --git a/config/config.go b/config/config.go
index 6695fd11..0a2cb963 100644
--- a/config/config.go
+++ b/config/config.go
@@ -855,7 +855,9 @@ func parseNameServer(servers []string, preferH3 bool) ([]dns.NameServer, error)
 			return nil, fmt.Errorf("DNS NameServer[%d] format error: %s", idx, err.Error())
 		}
 
-		var addr, dnsNetType, proxyAdapter string
+		proxyAdapter := u.Fragment
+
+		var addr, dnsNetType string
 		params := map[string]string{}
 		switch u.Scheme {
 		case "udp":