diff --git a/golem_activity_registration_payment/__manifest__.py b/golem_activity_registration_payment/__manifest__.py
index 2363982..cfb8e4a 100644
--- a/golem_activity_registration_payment/__manifest__.py
+++ b/golem_activity_registration_payment/__manifest__.py
@@ -20,7 +20,7 @@
     'name': 'GOLEM Activity Member Registration Payments',
     'summary': 'GOLEM Activities Member Registration Payments',
     'description': 'GOLEM Activities Member Registration Payments',
-    'version': '10.0.0.4.1',
+    'version': '10.0.0.5.0',
     'category': 'GOLEM',
     'author': 'Fabien Bourgeois',
     'license': 'AGPL-3',
diff --git a/golem_activity_registration_payment/wizard/golem_activity_registration_invoicing.py b/golem_activity_registration_payment/wizard/golem_activity_registration_invoicing.py
index 5145c6c..96fd434 100644
--- a/golem_activity_registration_payment/wizard/golem_activity_registration_invoicing.py
+++ b/golem_activity_registration_payment/wizard/golem_activity_registration_invoicing.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 
 #    Copyright 2017-2018 Fabien Bourgeois <fabien@yaltik.com>
+#    Copyright 2018 Youssef El Ouahby <youssef@yaltik.com>
 #
 #    This program is free software: you can redistribute it and/or modify
 #    it under the terms of the GNU Affero General Public License as
@@ -86,8 +87,8 @@ class GolemActivityRegistrationInvoicing(models.TransientModel):
         partner = self.member_id.partner_id
         #check if there is a draft invoice for the current customer
         member_line = partner.member_lines.filtered(
-            lambda ml: (ml.membership_id.membership_season_id.is_default and
-                        ml.account_invoice_id.state == 'draft')
+            lambda ml: (ml.membership_id.membership_season_id == self.season_id
+                        and ml.account_invoice_id.state == 'draft')
             )
         if member_line:
             invoice = member_line[0].account_invoice_id