diff --git a/src/epxc/mime/epx_mime_type_names.e b/src/epxc/mime/epx_mime_type_names.e
index 236ab40..9173882 100644
--- a/src/epxc/mime/epx_mime_type_names.e
+++ b/src/epxc/mime/epx_mime_type_names.e
@@ -34,6 +34,7 @@ feature -- Subtype names
 	mime_subtype_plain: STRING is "plain"
 	mime_subtype_related: STRING is "related"
 	mime_subtype_rfc822: STRING is "rfc822"
+	mime_subtype_x_www_form_urlencoded: STRING is "x_www_form_urlencoded"
 	mime_subtype_x_javascript: STRING is "x-javascript"
 	mime_subtype_x_tex: STRING is "x-tex"
 	mime_subtype_xml: STRING is "xml"