diff --git a/ChangeLog b/ChangeLog
index 9a01eebd0d..05bb6d55b2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Mon Feb  7 10:21:50 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rdoc/test_rdoc_options.rb (TestRDocOptions#test_check_files):
+	  there is no easy way to create owner unreadable file on Windows.
+	  So, skip the test.
+
 Sun Feb  6 13:48:29 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/json/lib/json/common.rb (JSON::MissingUnicodeSupport.iconv):
diff --git a/test/rdoc/test_rdoc_options.rb b/test/rdoc/test_rdoc_options.rb
index 8e5ec853cc..eaa10586fd 100644
--- a/test/rdoc/test_rdoc_options.rb
+++ b/test/rdoc/test_rdoc_options.rb
@@ -17,27 +17,28 @@ class TestRDocOptions < MiniTest::Unit::TestCase
   end
 
   def test_check_files
+    expected = ''
     out, err = capture_io do
       Dir.mktmpdir do |dir|
-        begin
-          unreadable = nil # variable for windows
+        if RUBY_PLATFORM =~ /mswin|mingw/ then
+          @options.files = %w[nonexistent]
 
-          Dir.chdir dir do
-            if RUBY_PLATFORM =~ /mswin|mingw/ then
-              unreadable = open 'unreadable'
-              File.delete 'unreadable'
-            else
-              FileUtils.touch 'unreadable'
-              FileUtils.chmod 0, 'unreadable'
-            end
+          expected = <<-EXPECTED
+file 'nonexistent' not found
+          EXPECTED
+        else
+          FileUtils.touch 'unreadable'
+          FileUtils.chmod 0, 'unreadable'
 
-            @options.files = %w[nonexistent unreadable]
+          @options.files = %w[nonexistent unreadable]
 
-            @options.check_files
-          end
-        ensure
-          unreadable.close if unreadable
+          expected = <<-EXPECTED
+file 'nonexistent' not found
+file 'unreadable' not readable
+          EXPECTED
         end
+
+        @options.check_files
       end
     end
 
@@ -45,11 +46,6 @@ class TestRDocOptions < MiniTest::Unit::TestCase
 
     assert_equal '', out
 
-    expected = <<-EXPECTED
-file 'nonexistent' not found
-file 'unreadable' not readable
-    EXPECTED
-
     assert_equal expected, err
   end