diff --git a/activerecord/test/cases/integration_test.rb b/activerecord/test/cases/integration_test.rb
index 95b028e59e..2e71b1a40d 100644
--- a/activerecord/test/cases/integration_test.rb
+++ b/activerecord/test/cases/integration_test.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'cases/helper'
 require 'models/company'
 require 'models/developer'