diff --git a/activerecord/test/cases/validations_test.rb b/activerecord/test/cases/validations_test.rb
index bf79521cca..f9a1b4620f 100755
--- a/activerecord/test/cases/validations_test.rb
+++ b/activerecord/test/cases/validations_test.rb
@@ -1,3 +1,4 @@
+# encoding: utf-8
 require "cases/helper"
 require 'models/topic'
 require 'models/reply'