diff --git a/ChangeLog b/ChangeLog
index 0e613356a0..4639999432 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Dec  1 15:08:32 2010  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/openssl/test_ssl.rb (test_not_started_session): non socket
+	  argument of SSLSocket.new is not supported on Windows.
+
 Wed Dec  1 14:36:36 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* string.c (rb_memhash): zero-filled strings should return
diff --git a/test/openssl/test_ssl.rb b/test/openssl/test_ssl.rb
index 4907c81bf8..01c8439b13 100644
--- a/test/openssl/test_ssl.rb
+++ b/test/openssl/test_ssl.rb
@@ -161,6 +161,7 @@ class OpenSSL::TestSSL < Test::Unit::TestCase
   end
 
   def test_not_started_session
+    skip "non socket argument of SSLSocket.new is not supported on this platform" if /mswin|mingw/ =~ RUBY_PLATFORM
     open(__FILE__) do |f|
       assert_nil OpenSSL::SSL::SSLSocket.new(f).cert
     end