diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index 879e5ddb53f..7c5f1737829 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -717,7 +717,7 @@ Readable.prototype.on = function(ev, fn) {
       if (!state.reading) {
         process.nextTick(nReadingNextTick, this);
       } else if (state.length) {
-        emitReadable(this, state);
+        emitReadable(this);
       }
     }
   }