diff --git a/README.md b/README.md
index 5aaca164..f07850d6 100644
--- a/README.md
+++ b/README.md
@@ -325,9 +325,10 @@ Start seeding a new torrent.
 - path to the file or folder on filesystem (string) (Node.js only)
 - W3C [File](https://developer.mozilla.org/en-US/docs/Web/API/File) object (from an `<input>` or drag and drop)
 - W3C [FileList](https://developer.mozilla.org/en-US/docs/Web/API/FileList) object (basically an array of `File` objects)
-- Node [Buffer](https://nodejs.org/api/buffer.html) object (works in [the browser](https://www.npmjs.com/package/buffer))
+- Node [Buffer](https://nodejs.org/api/buffer.html) object (works in [the browser](https://www.npmjs.com/package/buffer)) (must set a `name` property on it)
+- Node [stream.Readable](http://nodejs.org/api/stream.html) object (must set `name` and `opt.pieceLength` properties on it)
 
-Or, an **array of `string`, `File`, or `Buffer` objects**.
+Or, an **array of `string`, `File`, `Buffer`, or `stream.Readable` objects**.
 
 If `opts` is specified, it should contain the following types of options: