diff --git a/test/test_tags.rb b/test/test_tags.rb
index d25aa705..5624cead 100644
--- a/test/test_tags.rb
+++ b/test/test_tags.rb
@@ -1,3 +1,5 @@
+# coding: utf-8
+
 require File.dirname(__FILE__) + '/helper'
 
 class TestTags < Test::Unit::TestCase