diff --git a/ChangeLog b/ChangeLog
index 5dc4a1197b..cce7c3e9aa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Jul 21 13:35:21 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/Makefile.sub (TEST_RUNNABLE): follow r24209.
+
 Tue Jul 21 12:45:31 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* gc.c (rb_gc_enable, rb_gc_disable): should return Qtrue/Qfalse.
diff --git a/win32/Makefile.sub b/win32/Makefile.sub
index 03e5d97c91..2bdc6879f8 100644
--- a/win32/Makefile.sub
+++ b/win32/Makefile.sub
@@ -76,6 +76,9 @@ MV = move > nul
 !if !defined(BASERUBY)
 BASERUBY = ruby
 !endif
+!if !defined(TEST_RUNNABLE)
+TEST_RUNNABLE = yes
+!endif
 
 !if !defined(PROCESSOR_ARCHITECTURE)
 PROCESSOR_ARCHITECTURE = x86