diff --git a/src/ChangeLog b/src/ChangeLog
index 8ac2d29e436..5e76dea6720 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2004-05-10  Kenichi Handa  <handa@m17n.org>
+
+	* fns.c (count_combining): Delete it.
+	(concat): Don't check combining bytes.
+
 2004-05-09  Jason Rumney  <jasonr@gnu.org>
 
 	* w32fns.c (Vw32_ansi_code_page): New Lisp variable.