diff --git a/lib/assets/CacheManifest.js b/lib/assets/CacheManifest.js
index <HASH>..<HASH> 100644
--- a/lib/assets/CacheManifest.js
+++ b/lib/assets/CacheManifest.js
@@ -2,6 +2,7 @@ var util = require('util'),
     _ = require('underscore'),
     errors = require('../errors'),
     extendWithGettersAndSetters = require('../util/extendWithGettersAndSetters'),
+    AssetGraph = require('../AssetGraph'),
     Text = require('./Text');
 
 function CacheManifest(config) {
CacheManifest: Fixed parsing of existing cache manifest.

This was actually covered by a test, but the accidentally global var 'AssetGraph' that was fixed in <I>c<I> prevented the test from failing. What are the odds?