diff --git a/package.json b/package.json
index 7d8cbf6..f512180 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   ],
   "scripts": {
     "build": "npm run clean && npm run build-babel && npm run build-webpack",
-    "build-babel": "babel --out-dir dist src",
+    "build-babel": "babel --ignore 'src/browser.js' --out-dir dist src",
     "build-webpack": "npm run webpack",
     "clean": "rimraf dist embark.min.js",
     "prepack": "npm run build",