diff --git a/sanic/request.py b/sanic/request.py
index 26176687..0cd7c738 100644
--- a/sanic/request.py
+++ b/sanic/request.py
@@ -44,6 +44,7 @@ class Request(dict):
         'url', 'headers', 'version', 'method', '_cookies', 'transport',
         'query_string', 'body',
         'parsed_json', 'parsed_args', 'parsed_form', 'parsed_files',
+        '_ip',
     )
 
     def __init__(self, url_bytes, headers, version, method, transport):