diff --git a/scripts/upgrade b/scripts/upgrade
index 3c1c256..2a9b0fe 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -40,7 +40,7 @@ sudo systemctl stop mastodon-*.service
 # Change owner of live folder
 sudo chown -R $app: $final_path/live
 
-# upgrade Node.js v4 to v6 
+# upgrade Node.js v4 to v6
 node_version=$(nodejs --version)
 if [[ $node_version =~ ^v4.*$  ]]; then
 	pushd /opt
@@ -79,10 +79,9 @@ ynh_package_install pkg-config libprotobuf-dev protobuf-compiler
 # Apply Mastodon upgrade
 sudo su - $app <<COMMANDS
 pushd ~/live
-# pkg-config libprotobuf-dev protobuf-compiler
 bin/bundle install
 yarn install --pure-lockfile
-# RAILS_ENV=production bundle exec rails assets:clean
+RAILS_ENV=production bundle exec rails assets:clean
 RAILS_ENV=production bundle exec rails assets:precompile
 RAILS_ENV=production bundle exec rails db:migrate
 COMMANDS