diff --git a/ChangeLog b/ChangeLog
index f3d15cd303..befe0697b1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Dec 28 01:47:25 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* golf_prelude.rb (Integer): Integer is now enumerable on goruby.
+
 Fri Dec 28 01:27:47 2007  Tanaka Akira  <akr@fsij.org>
 
 	* lib/rdoc/rdoc.rb (parse_files): don't depend on the default external
diff --git a/golf_prelude.rb b/golf_prelude.rb
index a4b2753095..602767a5de 100644
--- a/golf_prelude.rb
+++ b/golf_prelude.rb
@@ -9,3 +9,11 @@ class Object
     puts "#{a}ello, #{b}orld#{c}"
   end
 end
+
+class Integer
+  def each(&b)
+    times &b
+  end
+
+  include Enumerable
+end