diff --git a/webaudioapi/readme.md b/webaudioapi/readme.md
index c65548622..08eac0767 100644
--- a/webaudioapi/readme.md
+++ b/webaudioapi/readme.md
@@ -12,3 +12,5 @@ The WebKit nightly builds try to keep up with the editors draft version of the s
 ### Adding the reference to your project
 
     /// <reference path="waa.d.ts" />
+or
+    /// <reference path="waa-nightly.d.ts" />
\ No newline at end of file
diff --git a/webaudioapi/waa-nightly.d.ts b/webaudioapi/waa-nightly.d.ts
index c20b1f44a..38ef2f401 100644
--- a/webaudioapi/waa-nightly.d.ts
+++ b/webaudioapi/waa-nightly.d.ts
@@ -1,3 +1,8 @@
+// Type definitions for the Web Audio API, currently only implemented in WebKit browsers (nightly builds)
+// Conforms to the: https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html specification
+// Definitions by: Baruch Berger (https://github.com/bbss)
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
 interface webkitAudioContext {
 
     destination: AudioDestinationNode;