diff --git a/ChangeLog b/ChangeLog
index febf518789..a262869758 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Oct 18 23:07:30 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_core.h (ruby_current_thread): probeprofiler has been removed
+	  long ago.
+
 Tue Oct 18 23:05:49 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/ripper/eventids2.c (ripper_init_eventids2): separate
diff --git a/vm_core.h b/vm_core.h
index e8dbdd9c5a..d44bd25298 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -682,7 +682,7 @@ int rb_autoloading_value(VALUE mod, ID id, VALUE* value);
 /* for thread */
 
 #if RUBY_VM_THREAD_MODEL == 2
-RUBY_EXTERN rb_thread_t *ruby_current_thread;
+extern rb_thread_t *ruby_current_thread;
 extern rb_vm_t *ruby_current_vm;
 
 #define GET_VM() ruby_current_vm