diff --git a/types/dummy/app.d.ts b/types/dummy/app.d.ts
new file mode 100644
index 0000000..4d8bb7b
--- /dev/null
+++ b/types/dummy/app.d.ts
@@ -0,0 +1,5 @@
+declare module 'dummy/app' {
+  import Application from '@ember/application';
+
+  export default class App extends Application {}
+}