diff --git a/admin/Gemfile b/admin/Gemfile
index 965a9d6fa..e79c7489d 100644
--- a/admin/Gemfile
+++ b/admin/Gemfile
@@ -71,6 +71,7 @@ gem 'geokit-rails'
 gem 'postgres_ext', '1.0.0'
 gem 'resque_mailer'
 gem 'rest-client'
+gem 'iso-639'
 
 group :libv8 do
   gem 'libv8', "~> 3.11.8"