diff --git a/db/migrate/20150524160616_create_call_for_participation_records.rb b/db/migrate/20150524160616_create_call_for_participation_records.rb
new file mode 100644
index 0000000..2788672
--- /dev/null
+++ b/db/migrate/20150524160616_create_call_for_participation_records.rb
@@ -0,0 +1,10 @@
+class Conference           < ActiveRecord::Base; end
+class CallForParticipation < ActiveRecord::Base; end
+
+class CreateCallForParticipationRecords < ActiveRecord::Migration
+  def change
+    Conference.all.each do |c|
+      CallForParticipation.create!(conference_id: c.id)
+    end
+  end
+end