diff --git a/ChangeLog b/ChangeLog
index 5a0c12ecfd..9b8c15efbb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -11,14 +11,14 @@ Mon Sep 16 00:44:23 2013  Masaki Matsushita  <glass.saga@gmail.com>
 Sun Sep 15 13:31:23 2013  Tadayoshi Funaba  <tadf@dotrb.org>
 
 	* rational.c (nurat_div): reverted r28844, r28886 and r28887.
-	REASON: Nobuyoshi Nakada  <nobu@ruby-lang.org>'s commits are buggy.
-	So Rational#/ may produce exact number with inexact number.
-	Moreover, without reducing.
-	REALLY NONSENSE COMMITS.
-	A bug report by me [ruby-dev:44710] is also caused by this behavior.
-	Kenta Murata  <mrkn@mrkn.jp> patched it up.
-	But he did not fix the origin.
-	Today, the bug is still alive in ruby 1.9.3 and 2.0.0.
+	  REASON: Nobuyoshi Nakada  <nobu@ruby-lang.org>'s commits are buggy.
+	  So Rational#/ may produce exact number with inexact number.
+	  Moreover, without reducing.
+	  REALLY NONSENSE COMMITS.
+	  A bug report by me [ruby-dev:44710] is also caused by this behavior.
+	  Kenta Murata  <mrkn@mrkn.jp> patched it up.
+	  But he did not fix the origin.
+	  Today, the bug is still alive in ruby 1.9.3 and 2.0.0.
 
 Sat Sep 14 06:08:10 2013  Eric Hodel  <drbrain@segment7.net>