diff --git a/activesupport/test/xml_mini/jdom_engine_test.rb b/activesupport/test/xml_mini/jdom_engine_test.rb
index 1e2a20f0bd..f2a8472702 100644
--- a/activesupport/test/xml_mini/jdom_engine_test.rb
+++ b/activesupport/test/xml_mini/jdom_engine_test.rb
@@ -15,20 +15,20 @@ if RUBY_PLATFORM =~ /java/
     XmlMini.backend = @default_backend
   end
 
-  # def test_file_from_xml
-  #   hash = Hash.from_xml(<<-eoxml)
-  #     <blog>
-  #       <logo type="file" name="logo.png" content_type="image/png">
-  #       </logo>
-  #     </blog>
-  #   eoxml
-  #   assert hash.has_key?('blog')
-  #   assert hash['blog'].has_key?('logo')
-  #
-  #   file = hash['blog']['logo']
-  #   assert_equal 'logo.png', file.original_filename
-  #   assert_equal 'image/png', file.content_type
-  # end
+  def test_file_from_xml
+     hash = Hash.from_xml(<<-eoxml)
+       <blog>
+         <logo type="file" name="logo.png" content_type="image/png">
+         </logo>
+       </blog>
+     eoxml
+     assert hash.has_key?('blog')
+     assert hash['blog'].has_key?('logo')
+
+     file = hash['blog']['logo']
+     assert_equal 'logo.png', file.original_filename
+     assert_equal 'image/png', file.content_type
+  end
 
   def test_exception_thrown_on_expansion_attack
     assert_raise NativeException do