diff --git a/.circleci/config.yml b/.circleci/config.yml
index fb21eb5a3..e4cd0426b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -10,6 +10,7 @@ jobs:
       - run: yarn lint
       - run: yarn test-unit
       - run: yarn build
+      - run: node -e "console.log(require('./lib/react-carousel'))"
       - run:
           name: publish gh pages for a given PR
           command: ./tools/deploy-gh-pages-pr.sh
diff --git a/docs-www/src/globalReferences.js b/docs-www/src/globalReferences.js
index 1c0d5bcc0..423997f24 100644
--- a/docs-www/src/globalReferences.js
+++ b/docs-www/src/globalReferences.js
@@ -1,7 +1,4 @@
 const { default: Carousel, Dots } = (() => {
-  if (!global.window) {
-    global.window = {};
-  }
   if ('__RC_ENV__' === 'development') {
     console.log('connecting with local react-carousel source code');
     return require('../../src');
diff --git a/package.json b/package.json
index f550e9de7..8069a2454 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "lint": "esw webpack.config.* src tools test --color",
     "clean-dist": "rimraf ./lib && mkdir lib",
     "prebuild": "npm run clean-dist",
-    "build": "node tools/build.js",
+    "build": "node tools/build.js && mv lib/react-carousel.js 1.js && echo 'if (!global.window) { global.window = {}; }' >> lib/react-carousel.js && cat 1.js >> lib/react-carousel.js && rm 1.js",
     "selenium-start": "selenium-standalone start",
     "selenium-install": "selenium-standalone install",
     "test": "npm run test-unit && npm run test-regression",