diff --git a/ChangeLog b/ChangeLog
index d3a90b2b9f..125988e24a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Feb  6 22:22:50 2004  NAKAMURA, Hiroshi  <nakahiro@sarion.co.jp>
+
+	* lib/pp.rb (PPInspectTest#test_to_s_with_iv): remove instance
+	  variable which is defined in the test.
+
 Fri Feb  6 18:54:18 2004  akira yamada  <akira@ruby-lang.org>
 
 	* test/ruby/test_proc.rb (TestProc::test_eq): added a
diff --git a/lib/pp.rb b/lib/pp.rb
index 81a453d9ab..b0dcf8694b 100644
--- a/lib/pp.rb
+++ b/lib/pp.rb
@@ -541,6 +541,7 @@ if __FILE__ == $0
       a.instance_eval { @a = nil }
       result = PP.pp(a, '')
       assert_equal("#{a.inspect}\n", result)
+      a.instance_eval { remove_instance_variable("@a") }
     end
     
     def test_to_s_without_iv