diff --git a/ChangeLog b/ChangeLog
index af1d7b3523..f43158b304 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -9,7 +9,7 @@ Tue Jun  7 17:39:54 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
 Tue Jun  7 16:32:53 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* sprintf.c (rb_f_sprintf): raise exception on debug mode (-d),
-	  not verbose mode (-w/-w).  [ruby-core:05123]
+	  not verbose mode (-v/-w).  [ruby-core:05123]
 
 Tue Jun  7 10:30:49 2005  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>