diff --git a/lib/rack/attack.rb b/lib/rack/attack.rb
index 1f3b7f0..39737d1 100644
--- a/lib/rack/attack.rb
+++ b/lib/rack/attack.rb
@@ -3,7 +3,10 @@ module Rack
   class Attack
     class << self
 
-      def block
+      attr_reader :blocks, :throttles, :whitelists
+
+      def block(name, &block)
+        (@blocks ||= {})[name] = block
       end
 
       def throttle
diff --git a/spec/rack_attack_spec.rb b/spec/rack_attack_spec.rb
index 5cdd426..03aafe3 100644
--- a/spec/rack_attack_spec.rb
+++ b/spec/rack_attack_spec.rb
@@ -3,6 +3,10 @@ require_relative 'spec_helper'
 describe 'Rack::Attack' do
   include Rack::Test::Methods
 
+  before do
+    Rack::Attack.block("ip 1.2.3.4") {|req| req.ip == '1.2.3.4' }
+  end
+
   def app
     Rack::Builder.new {
       use Rack::Attack
@@ -10,9 +14,15 @@ describe 'Rack::Attack' do
     }.to_app
   end
 
+  it 'has a block' do
+    Rack::Attack.blocks.class.must_equal Hash
+  end
+
   it "says hello" do
     get '/'
     last_response.status.must_equal 200
     last_response.body.must_equal 'Hello World'
   end
+
+
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index afb51d8..8cd7c86 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -2,6 +2,6 @@ require "rubygems"
 require "bundler/setup"
 
 require "minitest/autorun"
-require "rack"
 require "rack/test"
+
 require "rack/attack"