diff --git a/ChangeLog b/ChangeLog
index fe4e4fe614..b30d43d93e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Apr  1 13:19:20 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_core.h (RUBY_VM_CHECK_INTS_TH): merge a patch by ko1
+	  in [ruby-dev:43373].
+
 Thu Mar 31 23:15:46 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* misc/ruby-mode.el (ruby-brace-to-do-end, ruby-do-end-to-brace):
diff --git a/vm_core.h b/vm_core.h
index 257bdce668..c5417d9381 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -703,9 +703,9 @@ void rb_thread_lock_unlock(rb_thread_lock_t *);
 void rb_thread_lock_destroy(rb_thread_lock_t *);
 
 #define RUBY_VM_CHECK_INTS_TH(th) do { \
-  if (UNLIKELY((th)->interrupt_flag)) { \
-    rb_threadptr_execute_interrupts(th); \
-  } \
+    if (UNLIKELY((th)->interrupt_flag)) { \
+	rb_threadptr_execute_interrupts(th); \
+    } \
 } while (0)
 
 #define RUBY_VM_CHECK_INTS() \