diff --git a/ChangeLog b/ChangeLog
index 374b459b10..58512f2c2b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,11 @@
+Fri May 16 17:01:44 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (test-rubyspec): added.
+
 Fri May 16 16:22:40 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/tcltklib.c: sometimes freeze when receive Interrupt signal.
 
-
 Fri May 16 14:54:56 2008  Tanaka Akira  <akr@fsij.org>
 
 	* Makefile.in (update-rubyspec): move rubyspec to srcdir. 
diff --git a/win32/Makefile.sub b/win32/Makefile.sub
index d349422f35..ab83ace2c5 100644
--- a/win32/Makefile.sub
+++ b/win32/Makefile.sub
@@ -639,6 +639,11 @@ class File
 end
 <<KEEP
 
+test-rubyspec:
+	@if not exist $(srcdir:/=\)\rubyspec\nul echo No rubyspec here.  put rubyspec to srcdir first. && exit 1
+	$(RUNRUBY) $(srcdir)/rubyspec/mspec/bin/mspec -r$(srcdir)/ext/purelib.rb $(srcdir)/rubyspec/spec/rubyspec/$(MAJOR).$(MINOR)
+
+
 {$(srcdir)/missing}.c.obj:
 	$(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -c -Tc$(<:\=/)
 {$(srcdir)/win32}.c.obj: