diff --git a/ChangeLog b/ChangeLog
index 3b9b4c2a8b..5f28208dbd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Jun  7 19:02:48 2007  Tanaka Akira  <akr@fsij.org>
+
+	* lib/pp.rb: call original "method" method instead of redefined one.
+
 Thu Jun  7 17:20:57 2007  Koichi Sasada  <ko1@atdot.net>
 
 	* iseq.c (prepare_iseq_build): freeze filename and name string.
diff --git a/lib/pp.rb b/lib/pp.rb
index 7d2d7ebe05..179f5013fb 100644
--- a/lib/pp.rb
+++ b/lib/pp.rb
@@ -283,9 +283,9 @@ class PP < PrettyPrint
     # This module provides predefined #pretty_print methods for some of
     # the most commonly used built-in classes for convenience.
     def pretty_print(q)
-      if /\(Kernel\)#/ !~ method(:inspect).inspect
+      if /\(Kernel\)#/ !~ Object.instance_method(:method).bind(self).call(:inspect).inspect
         q.text self.inspect
-      elsif /\(Kernel\)#/ !~ method(:to_s).inspect && instance_variables.empty?
+      elsif /\(Kernel\)#/ !~ Object.instance_method(:method).bind(self).call(:to_s).inspect && instance_variables.empty?
         q.text self.to_s
       else
         q.pp_object(self)
@@ -317,7 +317,7 @@ class PP < PrettyPrint
     # However, doing this requires that every class that #inspect is called on
     # implement #pretty_print, or a RuntimeError will be raised.
     def pretty_print_inspect
-      if /\(PP::ObjectMixin\)#/ =~ method(:pretty_print).inspect
+      if /\(PP::ObjectMixin\)#/ =~ Object.instance_method(:method).bind(self).call(:pretty_print).inspect
         raise "pretty_print is not overridden for #{self.class}"
       end
       PP.singleline_pp(self, '')
@@ -516,6 +516,13 @@ if __FILE__ == $0
       a = OverriddenStruct.new(1,2)
       assert_equal("#<struct Struct::OverriddenStruct members=1, class=2>\n", PP.pp(a, ''))
     end
+
+    def test_redefined_method
+      o = ""
+      def o.method
+      end
+      assert_equal(%(""\n), PP.pp(o, ""))
+    end
   end
 
   class HasInspect