diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index 7d32e3fece..6ea49cf0a5 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -510,7 +510,7 @@ Readable.prototype.unpipe = function(dest) {
 // kludge for on('data', fn) consumers.  Sad.
 // This is *not* part of the new readable stream interface.
 // It is an ugly unfortunate mess of history.
-Readable.prototype.on = function(ev, fn) {
+Readable.prototype.addListener = Readable.prototype.on = function(ev, fn) {
   var res = Stream.prototype.on.call(this, ev, fn);
 
   // https://github.com/isaacs/readable-stream/issues/16