diff --git a/db/migrate/20121225103309_add_new_core_to_mass_build.rb b/db/migrate/20121225103309_add_new_core_to_mass_build.rb
new file mode 100644
index 000000000..0d04e5df0
--- /dev/null
+++ b/db/migrate/20121225103309_add_new_core_to_mass_build.rb
@@ -0,0 +1,5 @@
+class AddNewCoreToMassBuild < ActiveRecord::Migration
+  def change
+    add_column :mass_builds, :new_core, :boolean, :default => false
+  end
+end