--- a/preview.html	Tue Nov 12 06:57:23 2013 +0900
+++ b/preview.html	Tue Nov 12 07:00:49 2013 +0900
@@ -618,7 +618,7 @@
 				</section>
 			</dd>
 
-			<dt>ByteStreamReadResult pipe()</dt>
+			<dt>Promise&amp;lt;ByteStreamReadResult&gt; pipe()</dt>
 			<dd>
 				<p>
 					This method bulk transfers bytes from the ReadableByteStream to a <a>WritableByteStream</a>.