diff --git a/extension/gulpfile.babel.js b/extension/gulpfile.babel.js
index 839dbb33..659ecb38 100644
--- a/extension/gulpfile.babel.js
+++ b/extension/gulpfile.babel.js
@@ -1,4 +1,3 @@
-import fs from 'fs';
 import gulp from 'gulp';
 import gutil from 'gulp-util';
 import rename from 'gulp-rename';
@@ -55,14 +54,7 @@ gulp.task('webpack:build:extension', (callback) => {
   }
   webpackProcess(wrapConfig)
     .then(() => webpackProcess(prodConfig))
-    .then(() => {
-      const dest = './build/extension';
-      fs.rename(
-        `${dest}/redux-devtools-extension.bundle.js`,
-        `${dest}/redux-devtools-extension.js`,
-        callback
-      );
-    });
+    .then(callback);
 });
 
 gulp.task('copy:build:extension', (done) => {
diff --git a/extension/src/browser/extension/inject/index.js b/extension/src/browser/extension/inject/index.js
index 34f0debc..9537c081 100644
--- a/extension/src/browser/extension/inject/index.js
+++ b/extension/src/browser/extension/inject/index.js
@@ -1,5 +1,5 @@
 // Include this script in Chrome apps and extensions for remote debugging
-// <script src="chrome-extension://lmhkpmbekcpmknklioeibfkpmmfibljd/js/redux-devtools-extension.js"></script>
+// <script src="chrome-extension://lmhkpmbekcpmknklioeibfkpmmfibljd/js/redux-devtools-extension.bundle.js"></script>
 
 window.devToolsExtensionID = 'lmhkpmbekcpmknklioeibfkpmmfibljd';
 require('./contentScript');
diff --git a/extension/src/browser/extension/manifest.json b/extension/src/browser/extension/manifest.json
index efc4a642..604e309d 100644
--- a/extension/src/browser/extension/manifest.json
+++ b/extension/src/browser/extension/manifest.json
@@ -55,7 +55,7 @@
   "web_accessible_resources": [
     "page.bundle.js",
     "inject.bundle.js",
-    "redux-devtools-extension.js"
+    "redux-devtools-extension.bundle.js"
   ],
   "externally_connectable": {
     "ids": ["*"]
diff --git a/extension/src/browser/firefox/manifest.json b/extension/src/browser/firefox/manifest.json
index 851452bf..efbb1bb2 100644
--- a/extension/src/browser/firefox/manifest.json
+++ b/extension/src/browser/firefox/manifest.json
@@ -52,7 +52,7 @@
   "web_accessible_resources": [
     "page.bundle.js",
     "inject.bundle.js",
-    "redux-devtools-extension.js"
+    "redux-devtools-extension.bundle.js"
   ],
   "permissions": [
     "notifications",