diff --git a/Gemfile b/Gemfile
index 122ef15..c6ff0c2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,6 +35,7 @@ gem 'therubyracer', '~> 0.12.0'
 gem 'jquery-rails', '~> 3.0.4'
 gem 'jquery-ui-rails', '~> 4.0.4'
 gem 'dalli', '~> 2.6.2'
+gem 'json', '~> 1.8.0'
 gem 'active_scaffold', '~> 3.3.4.rc', github: 'activescaffold/active_scaffold'
 gem 'turbolinks', '~> 1.3.0'
 # gem 'rails_admin', '~> 0.5.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 72609ae..f74b9d4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -159,6 +159,7 @@ GEM
     jquery-ui-rails (4.0.4)
       jquery-rails
       railties (>= 3.1.0)
+    json (1.8.0)
     kgio (2.8.0)
     libv8 (3.16.14.3)
     mail (2.5.4)
@@ -292,6 +293,7 @@ DEPENDENCIES
   faker (~> 1.2.0)
   jquery-rails (~> 3.0.4)
   jquery-ui-rails (~> 4.0.4)
+  json (~> 1.8.0)
   mail_form (~> 1.5.0.rc)!
   mysql2 (~> 0.3.13)
   navigasmic (~> 0.5.6)!
diff --git a/entrydns.spec b/entrydns.spec
index 65d583a..4b93e1a 100644
--- a/entrydns.spec
+++ b/entrydns.spec
@@ -53,7 +53,7 @@ cp config/database.mysql.sample.yml config/database.yml
 bundle install --without development test
 
 # pre-compile assets
-bundle exec rake RAILS_ENV=production RAILS_GROUPS=assets assets:precompile
+bundle exec rake RAILS_ENV=production assets:precompile
 rm -rf .bundle
 
 bundle install --deployment --without development test assets