diff --git a/config/environments/production.rb b/config/environments/production.rb
index 4bb0a36..770544e 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -25,7 +25,7 @@ Rails.application.configure do
   config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
 
   # Compress JS using a preprocessor.
-  config.assets.js_compressor = :uglifier
+  config.assets.js_compressor = Uglifier.new(harmony: true)
   
   # Compress CSS using a preprocessor.
   # config.assets.css_compressor = :sass