diff --git a/activesupport/test/loading_module/admin/content_controller.rb b/activesupport/test/loading_module/admin/content_controller.rb
new file mode 100644
index 0000000000..454dbac690
--- /dev/null
+++ b/activesupport/test/loading_module/admin/content_controller.rb
@@ -0,0 +1,3 @@
+class Admin::ContentController
+  def identifier() :inner end
+end