diff --git a/ChangeLog b/ChangeLog
index 85fa4a1549..a86fc9c389 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Nov 21 22:17:15 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* ruby.c (usage): -W description updated.  [ruby-core:19858]
+
 Fri Nov 21 21:50:54 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* signal.c (register_sigaltstack): use alternative stack for
diff --git a/ruby.c b/ruby.c
index 012f34bd2a..3065b53353 100644
--- a/ruby.c
+++ b/ruby.c
@@ -148,7 +148,7 @@ usage(const char *name)
 	"-T[level]       turn on tainting checks",
 	"-v              print version number, then turn on verbose mode",
 	"-w              turn warnings on for your script",
-	"-W[level]       set warning level; 0=silence, 1=medium, 2=verbose (default)",
+	"-W[level]       set warning level; 0=silence, 1=medium, 2=verbose (default for level)",
 	"-x[directory]   strip off text before #!ruby line and perhaps cd to directory",
 	"--copyright     print the copyright",
 	"--version       print the version",