diff --git a/packages/react-devtools-extensions/chrome/manifest.json b/packages/react-devtools-extensions/chrome/manifest.json
index 686e12fe51537..06fa869de54a8 100644
--- a/packages/react-devtools-extensions/chrome/manifest.json
+++ b/packages/react-devtools-extensions/chrome/manifest.json
@@ -31,7 +31,7 @@
   "web_accessible_resources": [
     "main.html",
     "panel.html",
-    "build/backend.js",
+    "build/react_devtools_backend.js",
     "build/renderer.js"
   ],
 
diff --git a/packages/react-devtools-extensions/firefox/manifest.json b/packages/react-devtools-extensions/firefox/manifest.json
index f00115deb9dfc..73669435ae368 100644
--- a/packages/react-devtools-extensions/firefox/manifest.json
+++ b/packages/react-devtools-extensions/firefox/manifest.json
@@ -36,7 +36,7 @@
   "web_accessible_resources": [
     "main.html",
     "panel.html",
-    "build/backend.js",
+    "build/react_devtools_backend.js",
     "build/renderer.js"
   ],
 
diff --git a/packages/react-devtools-extensions/src/injectGlobalHook.js b/packages/react-devtools-extensions/src/injectGlobalHook.js
index 0aaa4810d02db..8785d97fc5ec8 100644
--- a/packages/react-devtools-extensions/src/injectGlobalHook.js
+++ b/packages/react-devtools-extensions/src/injectGlobalHook.js
@@ -35,7 +35,7 @@ window.addEventListener('message', function(evt) {
     chrome.runtime.sendMessage(lastDetectionResult);
   } else if (evt.data.source === 'react-devtools-inject-backend') {
     const script = document.createElement('script');
-    script.src = chrome.runtime.getURL('build/backend.js');
+    script.src = chrome.runtime.getURL('build/react_devtools_backend.js');
     document.documentElement.appendChild(script);
     script.parentNode.removeChild(script);
   }
diff --git a/packages/react-devtools-extensions/webpack.backend.js b/packages/react-devtools-extensions/webpack.backend.js
index 7757dd5207e27..d7de389f8ce08 100644
--- a/packages/react-devtools-extensions/webpack.backend.js
+++ b/packages/react-devtools-extensions/webpack.backend.js
@@ -24,7 +24,7 @@ module.exports = {
   },
   output: {
     path: __dirname + '/build',
-    filename: '[name].js',
+    filename: 'react_devtools_backend.js',
   },
   resolve: {
     alias: {