diff --git a/ChangeLog b/ChangeLog
index 6ee7c5e688..3ec71f9f21 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -23,7 +23,7 @@ Sat Dec 15 18:24:21 2012  Tadayoshi Funaba  <tadf@dotrb.org>
 
 Sat Dec 15 18:00:00 2012  Tadayoshi Funaba  <tadf@dotrb.org>
 
-	* ratioanl.c (float_rationalize): reduced.
+	* rational.c (float_rationalize): reduced.
 
 Sat Dec 15 14:18:44 2012  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>