diff --git a/README.md b/README.md
index 3ee53007..500bb883 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ let app = new EmberApp(defaults, {
 });
 ```
 
-For in-repo addons (index.js):
+For in-repo and standalone addons (index.js):
 
 ```js
 module.exports = {
@@ -67,6 +67,16 @@ module.exports = EngineAddon.extend({
 });
 ```
 
+For `app` files in standalone addons (ember-cli-build.js):
+
+```js
+let app = new EmberAddon(defaults, {
+  babel: {
+    plugins: [...require('ember-cli-code-coverage').buildBabelPlugin()]
+  },
+});
+```
+
 tests/test-helpers.js:
 ```js
 import { forceModulesToBeLoaded, sendCoverage } from 'ember-cli-code-coverage/test-support';