diff --git a/ChangeLog b/ChangeLog
index 3fa72ba398..9f6d6e1f9f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,7 @@
 Thu Oct 30 02:20:33 2008  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* array.c (rb_ary_sort_bang): remove SEGV when replacing array with
-	  embedded one during sort.
+	  embedded one during sort.  [ruby-dev:36983]
 
 	* test/ruby/test_array.rb (test_sort!): add tests for above.
 
@@ -34,7 +34,7 @@ Wed Oct 29 23:31:34 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
 Wed Oct 29 23:57:29 2008  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* array.c (rb_ary_sort_bang): replacing array during sort broke
-          invariant of array.
+          invariant of array.  [ruby-dev:36983]
 
 Wed Oct 29 21:06:46 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>