diff --git a/ChangeLog b/ChangeLog
index 4d1b1d4c5b..6e1738124e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -21,7 +21,7 @@ Fri Aug 22 19:30:39 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
 Fri Aug 22 19:25:28 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
-	* test/ruby/test_complex.rb: fixed broken tests. Math is nota
+	* test/ruby/test_complex.rb: fixed broken tests. Math is not
 	  compatible CMath now.
 
 Fri Aug 22 15:36:09 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>