diff --git a/easy_my_coop/models/account_invoice.py b/easy_my_coop/models/account_invoice.py
index 2961085..4b60a9a 100644
--- a/easy_my_coop/models/account_invoice.py
+++ b/easy_my_coop/models/account_invoice.py
@@ -178,7 +178,7 @@ class AccountInvoice(models.Model):
             ):
                 # take the effective date from the payment.
                 # by default the confirmation date is the payment date
-                effective_date = datetime.now().strftime("%d/%m/%Y")
+                effective_date = datetime.now()
 
                 if invoice.payment_move_line_ids:
                     move_line = invoice.payment_move_line_ids[0]