diff --git a/daphne/http_protocol.py b/daphne/http_protocol.py
index a30cbed..74d4239 100755
--- a/daphne/http_protocol.py
+++ b/daphne/http_protocol.py
@@ -275,11 +275,6 @@ class WebRequest(http.Request):
         })
 
 
-class HTTPProtocol(http.HTTPChannel):
-
-    requestFactory = WebRequest
-
-
 class HTTPFactory(http.HTTPFactory):
     """
     Factory which takes care of tracking which protocol
@@ -288,8 +283,6 @@ class HTTPFactory(http.HTTPFactory):
     routed appropriately.
     """
 
-    protocol = HTTPProtocol
-
     def __init__(self, channel_layer, action_logger=None, timeout=120, websocket_timeout=86400, ping_interval=20, ping_timeout=30, ws_protocols=None, root_path="", websocket_connect_timeout=30, proxy_forwarded_address_header=None, proxy_forwarded_port_header=None):
         http.HTTPFactory.__init__(self)
         self.channel_layer = channel_layer
@@ -309,6 +302,15 @@ class HTTPFactory(http.HTTPFactory):
         self.ws_factory.reply_protocols = self.reply_protocols
         self.root_path = root_path
 
+    def buildProtocol(self, addr):
+        """
+        Builds protocol instances. This override is used to ensure we use our
+        own Request object instead of the default.
+        """
+        protocol = http.HTTPFactory.buildProtocol(self, addr)
+        protocol.requestFactory = WebRequest
+        return protocol
+
     def reply_channels(self):
         return self.reply_protocols.keys()