diff --git a/transport/hub/kcpv/config_json.go b/transport/hub/kcpv/config_json.go
index c838104cd..66974c206 100644
--- a/transport/hub/kcpv/config_json.go
+++ b/transport/hub/kcpv/config_json.go
@@ -1 +1,3 @@
 package kcpv
+
+//We can use the default version of json parser