diff --git a/Adyen/client.py b/Adyen/client.py
index 9d218179..4ed901a0 100644
--- a/Adyen/client.py
+++ b/Adyen/client.py
@@ -410,7 +410,7 @@ def _handle_response(self, url, raw_response, raw_request, status_code, headers,
             # If the result can't be parsed into json, most likely is raw html.
             # Some response are neither json or raw html, handle them here:
             try:
-                response = json_lib.loads(raw_result)
+                response = json_lib.loads(raw_response)
 
                 self._handle_http_error(url, response, status_code,
                     headers.get('pspReference'), raw_request, raw_response, headers)
@@ -455,7 +455,7 @@ def _handle_response(self, url, raw_response, raw_request, status_code, headers,
                 raise AdyenInvalidRequestError(errorstring)
 
     def _handle_http_error(self, url, response_obj, status_code, psp_ref,
-            raw_request, raw_response, headers,message):
+                           raw_request, raw_response, headers, message=None):
         """This function handles the non 200 responses from Adyen, raising an
         error that should provide more information.