diff --git a/facturier/views.py b/facturier/views.py
index 404d0bd..926dc6a 100644
--- a/facturier/views.py
+++ b/facturier/views.py
@@ -134,9 +134,13 @@ class TransactionView(DetailView):
 
         return context
 
-    def invoice_rest_request(self, data_source_url, context):
-        data = Data(data_source_url, RequestContext(self.request, context),
-                    limit=None, refresh=None)
+    def invoice_rest_request(self, url_func, context):
+        data = Data(self.object.slug, {'limit': None, 'refresh': None},
+                    {'url': url_func(RequestContext(self.request, context)),
+                     'content_type': 'application/json',
+                     'parser_type': 'json',
+                     'slug': 'invoice'},
+                    context)
         return data.update_content().get('data').get('invoice')
 
     def get_context_data(self, **kwargs):
@@ -159,7 +163,8 @@ class TransactionView(DetailView):
                         'invoice_hash': invoice_hash,
                         'slug': slug,
                         'paid': False,})
-        invoice_data = self.invoice_rest_request(self.object.get_url, context)
+        invoice_data = self.invoice_rest_request(self.object.get_invoice_url,
+                                                 context)
         invoice.update(invoice_data)
 
         # invoice can be overriden by request.GET parameters
@@ -243,10 +248,9 @@ class TransactionView(DetailView):
         logger.debug('payment response: close transaction %s' % event.transaction_id)
         self.create_event(event.transaction_id, invoice_id, status,
                 response=True, message='response', details=response.__dict__)
-        update_url = self.object.get_invoice_update_url(context)
         logger.debug('payment response: update invoice PAID %s -- context %s' %
             (update_url, context))
-        self.invoice_rest_request(update_url, context)
+        self.invoice_rest_request(self.object.get_invoice_update_url, context)
 
         # ok !
         logger.debug('payment response: OK invoice %s', invoice_id)