diff --git a/aio/scripts/test-pwa-score.js b/aio/scripts/test-pwa-score.js
index fd531a8b8a..fcdec2e344 100644
--- a/aio/scripts/test-pwa-score.js
+++ b/aio/scripts/test-pwa-score.js
@@ -19,7 +19,7 @@ const printer = require('lighthouse/lighthouse-cli/printer');
 const logger = require('lighthouse-logger');
 
 // Constants
-const CHROME_LAUNCH_OPTS = {};
+const CHROME_LAUNCH_OPTS = {chromeFlags: ['--headless']};
 const LIGHTHOUSE_FLAGS = {logLevel: 'info'};
 const SKIPPED_HTTPS_AUDITS = ['redirects-http', 'uses-http2'];
 const VIEWER_URL = 'https://googlechrome.github.io/lighthouse/viewer/';