diff --git a/ChangeLog b/ChangeLog
index bff389903a..7e742de8b2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,7 @@ Mon Nov 29 01:18:18 2004  Tanaka Akira  <akr@m17n.org>
 	  READ_DATA_PENDING because io_seek(fptr, 0, SEEK_CUR) is
 	  meaningful only if read buffer is not empty.
 	  call io_seek regardless of NEED_IO_SEEK_BETWEEN_RW.
+	  [ruby-dev:24986]
 
 Sun Nov 28 15:57:58 2004  Kouhei Sutou  <kou@cozmixng.org>