diff --git a/ChangeLog b/ChangeLog
index d8812447bb..5b535fbdf2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Jul 18 19:41:19 2012  Tanaka Akira  <akr@fsij.org>
+
+	* test/openssl/test_config.rb: remove temporally files early.
+
 Wed Jul 18 17:45:26 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* error.c (rb_builtin_type_name): map by index.
diff --git a/test/openssl/test_config.rb b/test/openssl/test_config.rb
index 77f89b2bd6..2e29883c00 100644
--- a/test/openssl/test_config.rb
+++ b/test/openssl/test_config.rb
@@ -12,9 +12,14 @@ dir = ./demoCA
 certs                =                  ./certs
 __EOD__
     file.close
+    @tmpfile = file
     @it = OpenSSL::Config.new(file.path)
   end
 
+  def teardown
+    @tmpfile.unlink
+  end
+
   def test_constants
     assert(defined?(OpenSSL::Config::DEFAULT_CONFIG_FILE))
     assert_nothing_raised do
@@ -119,6 +124,8 @@ __EOC__
     c = OpenSSL::Config.load(file.path)
     assert_equal("[ default ]\n\n", c.to_s)
     assert_equal(['default'], c.sections)
+  ensure
+    file.unlink if file
   end
 
   def test_initialize
@@ -133,6 +140,8 @@ __EOC__
     c = OpenSSL::Config.new(file.path)
     assert_equal("[ default ]\n\n", c.to_s)
     assert_equal(['default'], c.sections)
+  ensure
+    file.unlink if file
   end
 
   def test_initialize_with_example_file