diff --git a/lib/asset-manifest-generator.js b/lib/asset-manifest-generator.js
index eb178a6..f528c3e 100644
--- a/lib/asset-manifest-generator.js
+++ b/lib/asset-manifest-generator.js
@@ -65,7 +65,7 @@ AssetManifestGenerator.prototype.build = function() {
   var existingManifestPath = this.inputPaths[1];
   var existingManifest;
 
-  // Check to see if we have an exisiting manifest. If not, than use a new
+  // Check to see if we have an existing manifest. If not, than use a new
   // empty manifest.
   try {
     existingManifest = fs.readJsonSync(path.join(existingManifestPath, 'asset-manifest.json'))
diff --git a/lib/manifest-generator.js b/lib/manifest-generator.js
index 726bd45..528872e 100644
--- a/lib/manifest-generator.js
+++ b/lib/manifest-generator.js
@@ -1,7 +1,4 @@
-var path = require('path');
-var fs = require('fs-extra');
 var Addon = require('ember-cli/lib/models/addon');
-var mergeTrees = require('broccoli-merge-trees');
 var objectAssign = require('object-assign');
 var findHost = require('./utils/find-host');
 
diff --git a/lib/node-asset-manifest-generator.js b/lib/node-asset-manifest-generator.js
index 74243b0..c86fbb5 100644
--- a/lib/node-asset-manifest-generator.js
+++ b/lib/node-asset-manifest-generator.js
@@ -1,5 +1,4 @@
 var Plugin = require('broccoli-caching-writer');
-var walk = require('walk-sync');
 var path = require('path');
 var fs = require('fs-extra');
 
diff --git a/lib/utils/find-host.js b/lib/utils/find-host.js
index eaf3869..16a54a8 100644
--- a/lib/utils/find-host.js
+++ b/lib/utils/find-host.js
@@ -3,7 +3,7 @@
  * up the parent/app hierarchy.
  *
  * @param {EmberAddon|EmberApp} context
- * @return {EmberApp} app
+ * @return {EmberApp}
  */
 module.exports = function findHost(context) {
   var current = context;
diff --git a/node-tests/asset-manifest-inserter-tests.js b/node-tests/asset-manifest-inserter-tests.js
index fef077f..194e23b 100644
--- a/node-tests/asset-manifest-inserter-tests.js
+++ b/node-tests/asset-manifest-inserter-tests.js
@@ -65,11 +65,9 @@ describe('asset-manifest-inserter', function() {
         var output = results.directory;
         var indexFilePath = path.join(output, 'index.html');
         var testIndexFilePath = path.join(output, 'tests', 'index.html');
-        var manifestFilePath = path.join(inputTrees[0], 'asset-manifest.json')
 
         var index = fs.readFileSync(indexFilePath, { encoding: 'utf8' });
         var testIndex = fs.readFileSync(testIndexFilePath, { encoding: 'utf8' });
-        var assetManifest = fs.readJsonSync(manifestFilePath);
 
         var appNeedle = 'herp-de-derp';
         assert.notEqual(index.indexOf(appNeedle), -1);