diff --git a/ChangeLog b/ChangeLog
index c8212712d5..5e30ee2830 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Dec 16 22:42:16 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/test/unit.rb (Test::Unit.setup_argv): sorry, fixed wrong commit.
+
 Tue Dec 16 22:15:17 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* lib/minitest/unit.rb (MiniTest::Assertions#assert_instance_of):
diff --git a/lib/test/unit.rb b/lib/test/unit.rb
index 7362beb889..729ddf6adf 100644
--- a/lib/test/unit.rb
+++ b/lib/test/unit.rb
@@ -32,7 +32,7 @@ module Test
       end
 
       files.map! {|f|
-        f.gsub!(/#{File::ALT_SEPARATOR}/o, File::SEPARATOR) if File::ALT_SEPARATOR
+        f = f.gsub(Regexp.compile(Regexp.quote(File::ALT_SEPARATOR)), File::SEPARATOR) if File::ALT_SEPARATOR
         if File.directory? f
           Dir["#{f}/**/test_*.rb"]
         elsif File.file? f