diff --git a/json.go b/json.go
deleted file mode 100644
index 9dda1df..0000000
--- a/json.go
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright 2014 Google Inc.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package uuid
-
-import "errors"
-
-func (u UUID) MarshalJSON() ([]byte, error) {
-	if len(u) != 16 {
-		return []byte(`""`), nil
-	}
-	var js [38]byte
-	js[0] = '"'
-	encodeHex(js[1:], u)
-	js[37] = '"'
-	return js[:], nil
-}
-
-func (u *UUID) UnmarshalJSON(data []byte) error {
-	if string(data) == `""` {
-		return nil
-	}
-	if data[0] != '"' {
-		return errors.New("invalid UUID format")
-	}
-	data = data[1 : len(data)-1]
-	uu := Parse(string(data))
-	if uu == nil {
-		return errors.New("invalid UUID format")
-	}
-	*u = uu
-	return nil
-}