diff --git a/cuba-sugar.gemspec b/cuba-sugar.gemspec
index af63e15..56481fb 100644
--- a/cuba-sugar.gemspec
+++ b/cuba-sugar.gemspec
@@ -10,6 +10,7 @@ Gem::Specification.new do |s|
   s.test_files        = `git ls-files test`.split("\n")
 
   s.add_dependency("cuba")
+  s.add_dependency("cuba-contrib")
   s.add_dependency("json")
   s.add_dependency("rack_csrf")
 
diff --git a/lib/cuba/sugar.rb b/lib/cuba/sugar.rb
index c14fec1..bad6c0d 100644
--- a/lib/cuba/sugar.rb
+++ b/lib/cuba/sugar.rb
@@ -1,7 +1,7 @@
-require 'json'
+require "cuba/contrib"
 require "rack/csrf"
 
-class Cuba
+module Cuba::Sugar
 
   # Sugar to access root of a page
   #
@@ -56,6 +56,7 @@ def as(http_code = 200, extra_headers = {})
   #   end
   # end
   def as_json(http_code = 200, extra_headers = {})
+    require 'json'
     extra_headers["Content-Type"] ||= "application/json"
     as(http_code, extra_headers) do
       (yield).to_json if block_given?
diff --git a/test/as.rb b/test/as.rb
index c00a055..e12548f 100644
--- a/test/as.rb
+++ b/test/as.rb
@@ -1,6 +1,7 @@
 require File.expand_path("helper", File.dirname(__FILE__))
 
 test "set status and headers through helper" do
+  Cuba.plugin Cuba::Sugar
   Cuba.define do
     on "users" do
       as 201, {"Content-Location" => "http://somewhere.com/users/705"} do
diff --git a/test/as_json.rb b/test/as_json.rb
index 32db117..e56787a 100644
--- a/test/as_json.rb
+++ b/test/as_json.rb
@@ -3,6 +3,8 @@
 
 test "set a block to return json" do
   rum_and_coke = { "rum" => "hot", "coke" => "sweet" }
+
+  Cuba.plugin Cuba::Sugar
   Cuba.define do
     on "drinks" do
       as_json 201, {"Content-Location" => "http://somewhere.com/drinks/42"} do
diff --git a/test/csrf.rb b/test/csrf.rb
index 8b195bf..b7cff42 100644
--- a/test/csrf.rb
+++ b/test/csrf.rb
@@ -1,6 +1,7 @@
 require File.expand_path("helper", File.dirname(__FILE__))
 
 test "set status and headers through helper" do
+  Cuba.plugin Cuba::Sugar
   Cuba.define do
     on "users" do
       as do
diff --git a/test/helpers.rb b/test/helpers.rb
index a7d4001..a85cf02 100644
--- a/test/helpers.rb
+++ b/test/helpers.rb
@@ -1,6 +1,7 @@
 require File.expand_path("helper", File.dirname(__FILE__))
 
 test "set status and headers through helpers" do
+  Cuba.plugin Cuba::Sugar
   Cuba.define do
     helpers do
       def upperize(string)
diff --git a/test/redirect.rb b/test/redirect.rb
index ed0337a..e5307d8 100644
--- a/test/redirect.rb
+++ b/test/redirect.rb
@@ -1,6 +1,7 @@
 require File.expand_path("helper", File.dirname(__FILE__))
 
 test "redirect helper" do
+  Cuba.plugin Cuba::Sugar
   Cuba.define do
     on "old" do
       redirect "/new"
diff --git a/test/subdomain.rb b/test/subdomain.rb
index cfe560f..df50e65 100644
--- a/test/subdomain.rb
+++ b/test/subdomain.rb
@@ -1,6 +1,7 @@
 require File.expand_path("helper", File.dirname(__FILE__))
 
 test "eval only in a given subdomain" do
+  Cuba.plugin Cuba::Sugar
   Cuba.define do
     on subdomain("api"), root do
       as do