diff --git a/ChangeLog b/ChangeLog
index ede35718bc..b0e3e0750a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Jul 25 10:00:23 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/testunit/test_redefinition.rb: broken class/method names.
+
 Wed Jul 25 09:26:32 2012  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* lib/cgi/html.rb: Use << instead of +=.
diff --git a/test/testunit/test_redefinition.rb b/test/testunit/test_redefinition.rb
index 612661ee65..677027a331 100644
--- a/test/testunit/test_redefinition.rb
+++ b/test/testunit/test_redefinition.rb
@@ -1,7 +1,7 @@
 require 'test/unit'
 
-class TestHideSkip < Test::Unit::TestCase
-  def test_hideskip
+class TestRedefinition < Test::Unit::TestCase
+  def test_redefinition
     test_out, o = IO.pipe
     spawn(*@options[:ruby], "#{File.dirname(__FILE__)}/test4test_redefinition.rb", out: File::NULL, err: o)
     o.close