diff --git a/lib/tasks/roles.rake b/lib/tasks/roles.rake
new file mode 100644
index 00000000..8c817db0
--- /dev/null
+++ b/lib/tasks/roles.rake
@@ -0,0 +1,15 @@
+namespace :roles do
+  desc 'Adds back deleted roles to all conferences'
+  task add: :environment do
+
+    Conference.all.each do |c|
+      Role.where(name: 'organizer', resource: c).first_or_create(description: 'For the organizers of the conference (who shall have full access)')
+      Role.where(name: 'cfp', resource: c).first_or_create(description: 'For the members of the CfP team')
+      Role.where(name: 'info_desk', resource: c).first_or_create(description: 'For the members of the Info Desk team')
+      Role.where(name: 'volunteers_coordinator', resource: c).first_or_create(description: 'For the people in charge of volunteers')
+    end
+
+    puts 'All done!'
+  end
+end
+