diff -u b/core/package.json b/core/package.json
--- b/core/package.json
+++ b/core/package.json
@@ -9,6 +9,7 @@
     "lint:core-js": "node ./node_modules/eslint/bin/eslint.js --ext=.es6.js . --fix || exit 0"
   },
   "devDependencies": {
+    "babel-core": "^6.24.1",
     "babel-preset-babili": "0.0.12",
     "babel-preset-env": "1.4.0",
     "chokidar": "1.6.1",
@@ -36,7 +37,9 @@
     ],
     "env": {
       "production": {
-        "presets": ["babili"]
+        "presets": [
+          "babili"
+        ]
       }
     }
   }