diff --git a/daphne/http_protocol.py b/daphne/http_protocol.py
index b2304df..d1358bf 100755
--- a/daphne/http_protocol.py
+++ b/daphne/http_protocol.py
@@ -41,12 +41,12 @@ class WebRequest(http.Request):
         if b"?" in self.uri:
             self.query_string = self.uri.split(b"?", 1)[1]
         # Sanitize headers
-        self.headers = {}
+        self.clean_headers = {}
         for name, value in self.requestHeaders.getAllRawHeaders():
             # Prevent CVE-2015-0219
             if b"_" in name:
                 continue
-            self.headers[name.lower().decode("latin1")] = value[0]
+            self.clean_headers[name.lower().decode("latin1")] = value[0]
         # Is it WebSocket? IS IT?!
         if upgrade_header == "websocket":
             # Make WebSocket protocol to hand off to
@@ -88,7 +88,7 @@ class WebRequest(http.Request):
                 "path": self.path,
                 "scheme": "http",
                 "query_string": self.query_string,
-                "headers": self.headers,
+                "headers": self.clean_headers,
                 "body": self.content.read(),
                 "client": [self.client.host, self.client.port],
                 "server": [self.host.host, self.host.port],
diff --git a/daphne/ws_protocol.py b/daphne/ws_protocol.py
index ed3544c..99b8754 100755
--- a/daphne/ws_protocol.py
+++ b/daphne/ws_protocol.py
@@ -21,7 +21,7 @@ class WebSocketProtocol(WebSocketServerProtocol):
     def onConnect(self, request):
         self.request_info = {
             "path": request.path,
-            "headers": self.headers,
+            "headers": self.clean_headers,
             "query_string": request.query_string,
             "client": [request.client.host, request.client.port],
             "server": [request.host.host, request.host.port],