diff --git a/ChangeLog b/ChangeLog
index d3f73bc7e9..bcebb8ce39 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Dec 30 19:23:23 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* bootstraptest/test_knownbug.rb: support DOSISH.
+
 Sun Dec 30 17:43:54 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* encoding.c (Init_Encoding): registered rb_encoding differs from
diff --git a/bootstraptest/test_knownbug.rb b/bootstraptest/test_knownbug.rb
index 36c53d51bd..9ecc7dfac7 100644
--- a/bootstraptest/test_knownbug.rb
+++ b/bootstraptest/test_knownbug.rb
@@ -4,7 +4,8 @@
 #
 
 assert_normal_exit %q{
-  File.read("/dev/null").clone
+  null = File.exist?("/dev/null") ? "/dev/null" : "NUL" # maybe DOSISH
+  File.read(null).clone
 }, '[ruby-dev:32819] reported by Kazuhiro NISHIYAMA'
 
 assert_normal_exit %q{