diff --git a/lib/output/ebook.js b/lib/output/ebook.js
index b4cd55088..010f3d741 100644
--- a/lib/output/ebook.js
+++ b/lib/output/ebook.js
@@ -1,14 +1,7 @@
-var util = require('util');
-
 var WebsiteOutput = require('./website');
-var AssetsInliner = require('./assets-inliner');
+var assetsInliner = require('./assets-inliner');
 
-function EbookOutput() {
-    WebsiteOutput.apply(this, arguments);
-    AssetsInliner.call(this);
-}
-util.inherits(EbookOutput, AssetsInliner);
-util.inherits(EbookOutput, WebsiteOutput);
+var EbookOutput = assetsInliner(WebsiteOutput);
 
 EbookOutput.prototype.name = 'ebook';