diff --git a/ChangeLog b/ChangeLog
index 8ef0432657..0e186d5d53 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Nov  6 14:38:00 2012  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/win32ole/test_win32ole.rb: now source encoding is UTF-8, so
+	  binary strings in old scripts are dangerous.
+
 Tue Nov  6 14:25:09 2012  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* lib/net/protocol.rb (Net::InternetMessageIO#each_crlf_line):
diff --git a/test/win32ole/test_win32ole.rb b/test/win32ole/test_win32ole.rb
index 5fbfbdef16..ba4413e025 100644
--- a/test/win32ole/test_win32ole.rb
+++ b/test/win32ole/test_win32ole.rb
@@ -379,7 +379,7 @@ if defined?(WIN32OLE)
           open(fname, "r:ascii-8bit") {|ifs|
             str = ifs.read
           }
-          assert_equal("\244\242", str)
+          assert_equal("\244\242".b, str)
         end
 
       ensure