diff --git a/test/error_notification_test.rb b/test/error_notification_test.rb
index 37d60eb9..21b14f99 100644
--- a/test/error_notification_test.rb
+++ b/test/error_notification_test.rb
@@ -1,3 +1,4 @@
+# encoding: UTF-8
 require 'test_helper'
 
 class ErrorNotificationTest < ActionView::TestCase