diff --git a/packages/test-app/config/optional-features.json b/packages/test-app/config/optional-features.json
index b26286e2e..f84cd7eed 100644
--- a/packages/test-app/config/optional-features.json
+++ b/packages/test-app/config/optional-features.json
@@ -2,5 +2,6 @@
   "application-template-wrapper": false,
   "default-async-observers": true,
   "jquery-integration": false,
-  "template-only-glimmer-components": true
+  "template-only-glimmer-components": true,
+  "use-ember-modules": true
 }