diff --git a/test/dummy_rails/app/assets/config/manifest.js b/test/dummy_rails/app/assets/config/manifest.js
new file mode 100644
index 00000000..b16e53d6
--- /dev/null
+++ b/test/dummy_rails/app/assets/config/manifest.js
@@ -0,0 +1,3 @@
+//= link_tree ../images
+//= link_directory ../javascripts .js
+//= link_directory ../stylesheets .css