7 files changed, 7 insertions, 1 deletions
diff --git a/std/io/_iotest.ts b/std/io/_iotest.ts
index a309fb5e1..726e7e2a6 100644
--- a/std/io/_iotest.ts
+++ b/std/io/_iotest.ts
@@ -1,4 +1,4 @@
-// Ported to Deno from
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.// Ported to Deno from
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
diff --git a/std/io/bufio.ts b/std/io/bufio.ts
index 682f96499..0d7d25998 100644
--- a/std/io/bufio.ts
+++ b/std/io/bufio.ts
@@ -1,3 +1,4 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 // Based on https://github.com/golang/go/blob/891682/src/bufio/bufio.go
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
diff --git a/std/io/bufio_test.ts b/std/io/bufio_test.ts
index 1ad6c7ac6..bddefb38c 100644
--- a/std/io/bufio_test.ts
+++ b/std/io/bufio_test.ts
@@ -1,3 +1,4 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 // Based on https://github.com/golang/go/blob/891682/src/bufio/bufio_test.go
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
diff --git a/std/io/mod.ts b/std/io/mod.ts
index f92feb6ef..2f4fbcc26 100644
--- a/std/io/mod.ts
+++ b/std/io/mod.ts
@@ -1,3 +1,4 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 export * from "./bufio.ts";
 export * from "./ioutil.ts";
 export * from "./readers.ts";
diff --git a/std/io/readers_test.ts b/std/io/readers_test.ts
index d608877c1..53edb851c 100644
--- a/std/io/readers_test.ts
+++ b/std/io/readers_test.ts
@@ -1,3 +1,4 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 import { assertEquals } from "../testing/asserts.ts";
 import { LimitedReader, MultiReader, StringReader } from "./readers.ts";
 import { StringWriter } from "./writers.ts";
diff --git a/std/io/test.ts b/std/io/test.ts
index 543491080..57684a50e 100644
--- a/std/io/test.ts
+++ b/std/io/test.ts
@@ -1 +1,2 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 import "./mod.ts";
diff --git a/std/io/writers_test.ts b/std/io/writers_test.ts
index ef4283352..6dedf72a3 100644
--- a/std/io/writers_test.ts
+++ b/std/io/writers_test.ts
@@ -1,3 +1,4 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 import { assertEquals } from "../testing/asserts.ts";
 import { StringWriter } from "./writers.ts";
 import { StringReader } from "./readers.ts";