diff --git a/lib/solidus_dev_support/templates/extension/bin/sandbox.tt b/lib/solidus_dev_support/templates/extension/bin/sandbox.tt
index 389af2bb..7aa2f394 100755
--- a/lib/solidus_dev_support/templates/extension/bin/sandbox.tt
+++ b/lib/solidus_dev_support/templates/extension/bin/sandbox.tt
@@ -61,6 +61,14 @@ group :test, :development do
 end
 RUBY
 
+echo "Generating manifest file"
+mkdir -p app/assets/config
+cat <<MANIFESTJS > app/assets/config/manifest.js
+//= link_tree ../images
+//= link_directory ../javascripts .js
+//= link_directory ../stylesheets .css
+MANIFESTJS
+
 unbundled bundle install --gemfile Gemfile
 
 unbundled bundle exec rake db:drop db:create