diff --git a/ChangeLog b/ChangeLog
index 652a5472b4..73fc1e82b4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Jan 31 02:50:34 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
+
+	* lib/optparse.rb (OptionParser::List::accept): default
+	  pattern must not be nil.
+
 Thu Jan 30 16:46:43 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
 
 	* lib/optparse.rb (OptionParser::Switch::PlacedArgument): added.
diff --git a/lib/optparse.rb b/lib/optparse.rb
index fd0e1394f2..5be91eb27d 100644
--- a/lib/optparse.rb
+++ b/lib/optparse.rb
@@ -388,7 +388,7 @@ summary feature.
 --- OptionParser::List#reject(type)
     see ((<OptionParser.reject>)).
 =end #'#"#`#
-    def accept(t, pat = nil, &block)
+    def accept(t, pat = /.*/, &block)
       if pat
 	pat.respond_to?(:match) or raise TypeError, "has no `match'"
       else