diff --git a/cmd/rlpdump/main.go b/cmd/rlpdump/main.go
index 4fb53369af30cb57dd654b162baa3c24a8922150..4c188e179dbbc6a2268d19b960305e9f23bd6ab2 100644
--- a/cmd/rlpdump/main.go
+++ b/cmd/rlpdump/main.go
@@ -1,7 +1,24 @@
+/*
+	This file is part of go-ethereum
+
+	go-ethereum is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	go-ethereum is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// rlpdump is a pretty-printer for RLP data.
 package main
 
 import (
-	"bufio"
 	"bytes"
 	"encoding/hex"
 	"flag"
@@ -49,7 +66,7 @@ func main() {
 			die(err)
 		}
 		defer fd.Close()
-		r = bufio.NewReader(fd)
+		r = fd
 
 	default:
 		fmt.Fprintln(os.Stderr, "Error: too many arguments")