diff --git a/rma_account/wizards/rma_add_invoice.py b/rma_account/wizards/rma_add_invoice.py
index 8c44205d..f766b6f6 100644
--- a/rma_account/wizards/rma_add_invoice.py
+++ b/rma_account/wizards/rma_add_invoice.py
@@ -10,8 +10,8 @@ class RmaAddInvoice(models.TransientModel):
     _description = 'Wizard to add rma lines'
 
     @api.model
-    def default_get(self, fields):
-        res = super(RmaAddInvoice, self).default_get(fields)
+    def default_get(self, fields_list):
+        res = super(RmaAddInvoice, self).default_get(fields_list)
         rma_obj = self.env['rma.order']
         rma_id = self.env.context['active_ids'] or []
         active_model = self.env.context['active_model']
diff --git a/rma_account/wizards/rma_refund.py b/rma_account/wizards/rma_refund.py
index 553b5449..0e06ee16 100644
--- a/rma_account/wizards/rma_refund.py
+++ b/rma_account/wizards/rma_refund.py
@@ -32,13 +32,13 @@ class RmaRefund(models.TransientModel):
         return values
 
     @api.model
-    def default_get(self, fields):
+    def default_get(self, fields_list):
         """Default values for wizard, if there is more than one supplier on
         lines the supplier field is empty otherwise is the unique line
         supplier.
         """
         context = self._context.copy()
-        res = super(RmaRefund, self).default_get(fields)
+        res = super(RmaRefund, self).default_get(fields_list)
         rma_line_obj = self.env['rma.order.line']
         rma_line_ids = self.env.context['active_ids'] or []
         active_model = self.env.context['active_model']