diff --git a/ChangeLog b/ChangeLog
index f5fdcdb5d5..1eca24f59a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Aug  9 12:37:22 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/openssl/test_config.rb (OpenSSL#test_constants): skip this
+	  test if platform is Mac OS X or Windows. [Bug #6830]
+
 Wed Aug  8 22:51:30 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_eval.c (eval_under): singletons other than special constants
diff --git a/test/openssl/test_config.rb b/test/openssl/test_config.rb
index 2e29883c00..604ccaa639 100644
--- a/test/openssl/test_config.rb
+++ b/test/openssl/test_config.rb
@@ -21,6 +21,8 @@ __EOD__
   end
 
   def test_constants
+    skip "DEFAULT_CONFIG_FILE may return a wrong path on your platforms. [Bug #6830]" if /mswin|mingw|darwin/ =~ RUBY_PLATFORM
+
     assert(defined?(OpenSSL::Config::DEFAULT_CONFIG_FILE))
     assert_nothing_raised do
       OpenSSL::Config.load(OpenSSL::Config::DEFAULT_CONFIG_FILE)