diff --git a/ChangeLog b/ChangeLog
index ba3ba8c020..8a4c35b745 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Dec 24 23:01:04 2007  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open-uri.rb (OpenURI::Buffer): use Meta ===.  [ruby-core:14295]
+
 Mon Dec 24 22:46:42 2007  NARUSE, Yui <naruse@ruby-lang.org>
 
 	* transocode.c: register_functional_transcoder() added.
diff --git a/lib/open-uri.rb b/lib/open-uri.rb
index d6d4019e06..a981f58eda 100644
--- a/lib/open-uri.rb
+++ b/lib/open-uri.rb
@@ -367,14 +367,14 @@ module OpenURI
         require 'tempfile'
         io = Tempfile.new('open-uri')
         io.binmode
-        Meta.init io, @io if @io.respond_to? :meta
+        Meta.init io, @io if Meta === @io
         io << @io.string
         @io = io
       end
     end
 
     def io
-      Meta.init @io unless @io.respond_to? :meta
+      Meta.init @io unless Meta === @io
       @io
     end
   end