diff --git a/ChangeLog b/ChangeLog
index 05a015a5fa..a8ee6eb020 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Thu Mar 31 11:00:36 2005  Kouhei Sutou  <kou@cozmixng.org>
+
+	* lib/rss/parser.rb
+	  (RSS::BaseListener.install_setter)
+	  (RSS::BaseListener.register_uri): changed fallback way.
+
 Thu Mar 31 08:25:40 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* common.mk (RUBYOPT): clear for the environment RubyGems installed.
diff --git a/lib/rss/parser.rb b/lib/rss/parser.rb
index fb6c55fb72..ecfde83762 100644
--- a/lib/rss/parser.rb
+++ b/lib/rss/parser.rb
@@ -127,12 +127,12 @@ module RSS
       @@registered_uris = {}
 
       def install_setter(uri, tag_name, setter)
-        @@setter[uri] = {}  unless @@setter.has_key?(uri)
+        @@setter[uri] ||= {}
         @@setter[uri][tag_name] = setter
       end
 
       def register_uri(name, uri)
-        @@registered_uris[name] = {}  unless @@registered_uris.has_key?(name)
+        @@registered_uris[name] ||= {}
         @@registered_uris[name][uri] = nil
       end