diff --git a/transport/internet/config.go b/transport/internet/config.go
index b97246fcd..83f097549 100644
--- a/transport/internet/config.go
+++ b/transport/internet/config.go
@@ -11,7 +11,7 @@ var (
 
 func RegisterProtocolConfigCreator(protocol TransportProtocol, creator ConfigCreator) error {
 	if _, found := globalTransportConfigCreatorCache[protocol]; found {
-		return newError("protocol: " + TransportProtocol_name[int32(protocol)]+ " is already registered").AtError()
+		return newError("protocol ", TransportProtocol_name[int32(protocol)], " is already registered").AtError()
 	}
 	globalTransportConfigCreatorCache[protocol] = creator
 	return nil
diff --git a/transport/internet/http/errors.generated.go b/transport/internet/http/errors.generated.go
index 3d68c2c5c..d89f957d7 100644
--- a/transport/internet/http/errors.generated.go
+++ b/transport/internet/http/errors.generated.go
@@ -2,4 +2,6 @@ package http
 
 import "v2ray.com/core/common/errors"
 
-func newError(values ...interface{}) *errors.Error { return errors.New(values...).Path("Transport", "Internet", "HTTP") }
+func newError(values ...interface{}) *errors.Error {
+	return errors.New(values...).Path("Transport", "Internet", "HTTP")
+}