diff --git a/app.json b/app.json
index dadc721f38..b7471e65eb 100644
--- a/app.json
+++ b/app.json
@@ -1,9 +1,9 @@
 {
   "name": "Salesforce Lightning Design System",
   "buildpacks": [
-   {
-     "url": "https://github.com/heroku/heroku-buildpack-nodejs"
-   }
+    {
+      "url": "https://github.com/heroku/heroku-buildpack-nodejs"
+    }
   ],
   "env": {
     "APP_MODE": {