diff --git a/ChangeLog b/ChangeLog
index e53c1214c5..80c882fac1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Nov 20 10:05:56 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* thread.c (rb_thread_blocking_region_end): replaced GET_THREAD()
+	  with ruby_thread_from_native(). We don't have GVL here.
+
 Tue Nov 20 09:56:15 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
 	* thread.c (rb_threadptr_execute_interrupts) removed.
diff --git a/thread.c b/thread.c
index 1a37b2873a..273cf24b04 100644
--- a/thread.c
+++ b/thread.c
@@ -1070,7 +1070,7 @@ void
 rb_thread_blocking_region_end(struct rb_blocking_region_buffer *region)
 {
     int saved_errno = errno;
-    rb_thread_t *th = GET_THREAD();
+    rb_thread_t *th = ruby_thread_from_native();
     blocking_region_end(th, region);
     xfree(region);
     RUBY_VM_CHECK_INTS_BLOCKING(th);