diff --git a/package.json b/package.json
index 9510102..cd6ebff 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,11 @@
     "format": "prettier --semi false --write 'src/**/*.js'",
     "release": "npm run build && npm test && git commit -am $npm_package_version && git tag $npm_package_version && git push && git push --tags && npm publish"
   },
+  "babel": {
+    "presets": "es2015"
+  },
   "devDependencies": {
+    "babel-preset-es2015": "^6.24.1",
     "jest": "^20.0.4",
     "prettier": "~1.4.1",
     "rollup": "^0.41.6",
diff --git a/test/html.test.js b/test/html.test.js
index 68f372c..6406b52 100644
--- a/test/html.test.js
+++ b/test/html.test.js
@@ -1,5 +1,5 @@
 import { h } from "hyperapp"
-import html, { div, h1 } from "../dist/html"
+import html, { div, h1 } from "../dist/html.js"
 
 test("hyperapp h similarity", () => {
   expect(