diff --git a/lib/renderer/init.js b/lib/renderer/init.js
index b0baf438c6c9..409d7d719f37 100644
--- a/lib/renderer/init.js
+++ b/lib/renderer/init.js
@@ -64,7 +64,7 @@ if (window.location.protocol === 'chrome-devtools:') {
 } else if (window.location.protocol === 'chrome-extension:') {
   // Add implementations of chrome API.
   require('./chrome-api').injectTo(window.location.hostname, window)
-  nodeIntegration = 'true'
+  nodeIntegration = 'false'
 } else {
   // Override default web functions.
   require('./override')