diff --git a/package.json b/package.json
index 69b74acc4..e4aabe66a 100644
--- a/package.json
+++ b/package.json
@@ -29,8 +29,7 @@
     "lint:src": "eslint --ext .js src/scripts/**",
     "lint:stories": "eslint --ext .js stories/**",
     "lint:test": "eslint --ext .js test/**",
-    "build:old": "babel -d lib/ src/",
-    "build": "tsc -p .",
+    "build": "babel -d lib/ src/ --extensions \".js,.ts,.tsx\"",
     "build:assets": "cp -r node_modules/@salesforce-ux/design-system/assets public",
     "build:storybook": "build-storybook -o public",
     "deploy": "npm-run-all build:storybook build:assets deploy:ghpage",