diff --git a/app/models/article_follower.rb b/app/models/article_follower.rb
index 632f663..a4a8ae1 100644
--- a/app/models/article_follower.rb
+++ b/app/models/article_follower.rb
@@ -1,5 +1,7 @@
 class ArticleFollower < ActiveRecord::Base
+
   attr_accessible :article_id, :person_id, :since
-  belongs_to :article
+  belongs_to :article, :counter_cache => :followers_count
   belongs_to :person
+
 end
diff --git a/db/migrate/20150909091347_add_followers_count_to_article.rb b/db/migrate/20150909091347_add_followers_count_to_article.rb
new file mode 100644
index 0000000..c5f3648
--- /dev/null
+++ b/db/migrate/20150909091347_add_followers_count_to_article.rb
@@ -0,0 +1,15 @@
+class AddFollowersCountToArticle < ActiveRecord::Migration
+
+  def self.up
+    add_column :articles, :followers_count, :integer, :default => 0
+    add_column :article_versions, :followers_count, :integer
+
+    execute "update articles set followers_count = (select count(*) from article_followers where article_followers.article_id = articles.id)"
+  end
+
+  def self.down
+    remove_column :article_versions, :followers_count
+    remove_column :articles, :followers_count
+  end
+
+end
diff --git a/test/fixtures/article_followers.yml b/test/fixtures/article_followers.yml
deleted file mode 100644
index 1785b5f..0000000
--- a/test/fixtures/article_followers.yml
+++ /dev/null
@@ -1,11 +0,0 @@
-# Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/Fixtures.html
-
-one:
-  person_id: 1
-  article_id: 1
-  since: 2015-06-16 17:02:01
-
-two:
-  person_id: 1
-  article_id: 1
-  since: 2015-06-16 17:02:01
diff --git a/test/unit/article_test.rb b/test/unit/article_test.rb
index 164537e..564af2a 100644
--- a/test/unit/article_test.rb
+++ b/test/unit/article_test.rb
@@ -2167,4 +2167,21 @@ class ArticleTest < ActiveSupport::TestCase
     article.destroy
   end
 
+  should "increment followers count when a person follow an article" do
+    a = fast_create(Article)
+    p = fast_create(Person)
+    assert_difference "a.reload.followers_count" do
+      a.person_followers << p
+    end
+  end
+
+  should "decrement followers count when a person unfollow an article" do
+    p = fast_create(Person)
+    a = fast_create(Article, :profile_id => p)
+    a.person_followers << p
+    assert_difference "a.reload.followers_count", -1 do
+      a.person_followers.destroy_all
+    end
+  end
+
 end
--
libgit2 0.21.2