diff --git a/ChangeLog b/ChangeLog
index f224f7cf4f..04aa580c79 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Jul 10 11:41:39 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (rb_obj_{untrust,untrusted,trust}): added
+	  prototypes.  [ruby-dev:38756]
+
 Fri Jul 10 10:25:19 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_insnhelper.c (vm_search_superclass): checks for implici
diff --git a/include/ruby/intern.h b/include/ruby/intern.h
index efa7bfbb1b..dfc3a355e2 100644
--- a/include/ruby/intern.h
+++ b/include/ruby/intern.h
@@ -452,6 +452,9 @@ VALUE rb_obj_init_copy(VALUE,VALUE);
 VALUE rb_obj_taint(VALUE);
 VALUE rb_obj_tainted(VALUE);
 VALUE rb_obj_untaint(VALUE);
+VALUE rb_obj_untrust(VALUE);
+VALUE rb_obj_untrusted(VALUE);
+VALUE rb_obj_trust(VALUE);
 VALUE rb_obj_freeze(VALUE);
 VALUE rb_obj_frozen_p(VALUE);
 VALUE rb_obj_id(VALUE);