diff --git a/spec/components/email/receiver_spec.rb b/spec/components/email/receiver_spec.rb
index b9d3dcadddf..b7945b1092b 100644
--- a/spec/components/email/receiver_spec.rb
+++ b/spec/components/email/receiver_spec.rb
@@ -1,3 +1,5 @@
+# -*- encoding : utf-8 -*-
+
 require 'spec_helper'
 require 'email/receiver'