diff --git a/README.md b/README.md
index a62dfbe..40829c3 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,14 @@ Account.unrelease_to_all(:email_marketing, :new_email_flow)
 Account.released_features_to_all
 ```
 
+## Clean up action
+
+By default when a key is removed from `rollout.yml` file, its data still in the storage.
+
+To clean it up, execute or schedule the rake:
+
+    $ bundle exec rake feature_flagger:cleanup_removed_rollouts
+
 ## Contributing
 
 Bug reports and pull requests are welcome!
diff --git a/lib/feature_flagger.rb b/lib/feature_flagger.rb
index 60aa6f6..7894533 100644
--- a/lib/feature_flagger.rb
+++ b/lib/feature_flagger.rb
@@ -7,6 +7,7 @@
 require 'feature_flagger/feature'
 require 'feature_flagger/configuration'
 require 'feature_flagger/manager'
+require 'feature_flagger/railtie'
 
 module FeatureFlagger
   class << self
diff --git a/lib/feature_flagger/railtie.rb b/lib/feature_flagger/railtie.rb
new file mode 100644
index 0000000..4e41180
--- /dev/null
+++ b/lib/feature_flagger/railtie.rb
@@ -0,0 +1,9 @@
+if defined?(Rails)
+  module FeatureFlagger
+    class Railtie < Rails::Railtie
+      rake_tasks do
+        load 'tasks/cleanup.rake'
+      end
+    end
+  end
+end
\ No newline at end of file
diff --git a/lib/tasks/cleanup.rake b/lib/tasks/cleanup.rake
new file mode 100644
index 0000000..2136d30
--- /dev/null
+++ b/lib/tasks/cleanup.rake
@@ -0,0 +1,10 @@
+namespace :feature_flagger do
+  desc "cleaning up keys from storage that are no longer in the rollout.yml file"
+  task :cleanup_removed_rollouts => :environment do
+    keys = FeatureFlagger::Manager.detached_feature_keys
+    puts "Found keys to remove: #{keys}"
+    keys.each do |key|
+      FeatureFlagger::Manager.cleanup_detached key
+    end
+  end
+end
\ No newline at end of file