diff --git a/db/migrate/20130129145833_add_counters_to_mass_build.rb b/db/migrate/20130129145833_add_counters_to_mass_build.rb
new file mode 100644
index 000000000..f67ca4214
--- /dev/null
+++ b/db/migrate/20130129145833_add_counters_to_mass_build.rb
@@ -0,0 +1,13 @@
+class AddCountersToMassBuild < ActiveRecord::Migration
+  def up
+    add_column :mass_builds, :success_count, :integer, :default => 0, :null => false
+    add_column :mass_builds, :build_canceled_count, :integer, :default => 0, :null => false
+    change_column :mass_builds, :new_core, :boolean, :default => true
+  end
+
+  def down
+    remove_column :mass_builds, :success_count
+    remove_column :mass_builds, :build_canceled_count
+    change_column :mass_builds, :new_core, :boolean, :default => false
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 922cffb18..d2a3da177 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -266,7 +266,7 @@ ActiveRecord::Schema.define(:version => 20130129145833) do
     t.text     "projects_list"
     t.integer  "missed_projects_count", :default => 0,     :null => false
     t.text     "missed_projects_list"
-    t.boolean  "new_core",              :default => false
+    t.boolean  "new_core",              :default => true
     t.integer  "success_count",         :default => 0,     :null => false
     t.integer  "build_canceled_count",  :default => 0,     :null => false
   end