diff --git a/db/migrate/20160509091049_add_locked_to_ci_runner.rb b/db/migrate/20160509091049_add_locked_to_ci_runner.rb
index 43376304bd95bd0be301eca303936fb60c0a8d54..3fbaef3b7f0ae87d39d78a1e02516da7c77a97ab 100644
--- a/db/migrate/20160509091049_add_locked_to_ci_runner.rb
+++ b/db/migrate/20160509091049_add_locked_to_ci_runner.rb
@@ -1,7 +1,7 @@
 class AddLockedToCiRunner < ActiveRecord::Migration
-  ##
-  # Downtime expected due to exclusive lock when setting default value.
-  #
+  include Gitlab::Database::MigrationHelpers
+  disable_ddl_transaction!
+
   def up
     add_column_with_default(:ci_runners, :locked, :boolean,
                             default: false, allow_null: false)