diff --git a/ChangeLog b/ChangeLog
index bc10408fa2..239e58ffd5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,9 +1,18 @@
+Sat Dec  1 00:08:55 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/rubygems/test_gem_installer.rb
+	  (TestGemInstaller#test_check_executable_overwrite_other_non_gem):
+	  on Windows, rubygems always generate a wrapper .bat file when
+	  installing a file into bin, so testing no-overwrite a wrapper file
+	  and a non-wrapper file is nonsence.  see [ruby-core:50388].
+
 Fri Nov 30 23:39:58 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* test/rubygems/test_gem_installer.rb
 	  (TestGemInstaller#test_check_executable_overwrite_default_bin_dir):
 	  if the executable to be overwritten was generated by rubygems, the
 	  error messsage differs from the only copied one's.
+	  see [ruby-core:50388].
 
 Fri Nov 30 23:27:26 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
 
diff --git a/test/rubygems/test_gem_installer.rb b/test/rubygems/test_gem_installer.rb
index 7d1abf18c5..6645194021 100644
--- a/test/rubygems/test_gem_installer.rb
+++ b/test/rubygems/test_gem_installer.rb
@@ -229,7 +229,7 @@ load Gem.bin_path('a', 'executable', version)
 
     wrapper = File.read installed_exec
     assert_match %r|generated by RubyGems|, wrapper
-  end
+  end unless Gem.win_platform?
 
   def test_ensure_dependency
     quick_spec 'a'