diff --git a/admin/starter/composer.json b/admin/starter/composer.json
index 37c3e5642f29..35b791c3f050 100644
--- a/admin/starter/composer.json
+++ b/admin/starter/composer.json
@@ -19,6 +19,9 @@
         "phpunit/phpunit": "^9.1"
     },
     "autoload": {
+        "psr-4": {
+            "App\\": "app/"
+        },
         "exclude-from-classmap": [
             "**/Database/Migrations/**"
         ]