diff --git a/ChangeLog b/ChangeLog
index fa72b176e2..df9739d9c9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Jan  5 20:28:19 2007  Koichi Sasada  <ko1@atdot.net>
+
+	* thread_win32.ci (rb_thread_reset_timer_thread) :
+	added ([ruby-dev:30086]).
+
 Fri Jan  5 20:20:36 2007  Koichi Sasada  <ko1@atdot.net>
 
 	* common.mk : add .SUFFIXES rule
diff --git a/thread_win32.ci b/thread_win32.ci
index 2dea450e35..27550ccf01 100644
--- a/thread_win32.ci
+++ b/thread_win32.ci
@@ -307,4 +307,11 @@ rb_thread_create_timer_thread(void)
     }
 }
 
+void
+rb_thread_reset_timer_thread(void)
+{
+    timer_thread_handle = 0;
+    rb_thread_create_timer_thread();
+} 
+
 #endif /* THREAD_SYSTEM_DEPENDENT_IMPLEMENTATION */