diff --git a/example_config.json b/example_config.json
index 89eb94cc2..bb7fa098d 100644
--- a/example_config.json
+++ b/example_config.json
@@ -13,5 +13,7 @@
   "tun-experimental": false,
   "fwmark": "0x1375",
   "wgconf": "",
-  "reserved": ""
+  "reserved": "",
+  "4": true,
+  "6": true
 }