1 files changed, 1 insertions, 0 deletions
diff --git a/js/io.ts b/js/io.ts
index 735be19a1..96f356136 100644
--- a/js/io.ts
+++ b/js/io.ts
@@ -1,3 +1,4 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
 // Interfaces 100% copied from Go.
 // Documentation liberally lifted from them too.
 // Thank you! We love Go!