diff --git a/issue33209.diff b/issue33209.diff
deleted file mode 100644
index 02986e1..0000000
--- a/issue33209.diff
+++ /dev/null
@@ -1,41 +0,0 @@
-diff -r 096004a93da6 trytond/trytond/modules/account_invoice/invoice.py
---- a/trytond/trytond/modules/account_invoice/invoice.py	Thu Jan 18 13:57:46 2018 +0100
-+++ b/trytond/trytond/modules/account_invoice/invoice.py	Thu Jan 18 14:43:12 2018 +0100
-@@ -2665,11 +2665,11 @@
-         refund = self.start.with_refund
-         invoices = Invoice.browse(Transaction().context['active_ids'])
- 
--        if refund:
--            for invoice in invoices:
--                if invoice.state != 'posted':
--                    self.raise_user_error('refund_non_posted',
--                        (invoice.rec_name,))
-+        for invoice in invoices:
-+            if invoice.state != 'posted':
-+                self.raise_user_error('invoice_non_posted',
-+                    (invoice.rec_name,))
-+            if refund:
-                 if invoice.payment_lines:
-                     self.raise_user_error('refund_with_payement',
-                         (invoice.rec_name,))
-diff -r 096004a93da6 trytond/trytond/modules/account_invoice/tests/scenario_invoice.rst
---- a/trytond/trytond/modules/account_invoice/tests/scenario_invoice.rst	Thu Jan 18 13:57:46 2018 +0100
-+++ b/trytond/trytond/modules/account_invoice/tests/scenario_invoice.rst	Thu Jan 18 14:43:12 2018 +0100
-@@ -139,6 +139,17 @@
-     Decimal('240.00')
-     >>> invoice.save()
- 
-+Try to credit the invoice::
-+
-+    >>> invoice.state
-+    u'draft'
-+    >>> credit = Wizard('account.invoice.credit', [invoice])
-+    >>> credit.form.with_refund = True
-+    >>> credit.execute('credit')  #doctest: +IGNORE_EXCEPTION_DETAIL
-+    Traceback (most recent call last):
-+        ...
-+    UserError: ('UserError', (u'You can not credit with refund invoice "1 Party" because it is not posted.', ''))
-+
- Test change tax::
- 
-     >>> tax_line, = invoice.taxes
diff --git a/series b/series
index d05cc9e..695a379 100644
--- a/series
+++ b/series
@@ -70,5 +70,4 @@ issue6896.diff # [sale_credit_limit] - Use quantity sold and invoiced to compute
 issue6845-issue5613.diff # [commission] Missing agent type domain on sale and invoice + Remove old usage of out_credit_note
 
 issue7012.diff # [stock_consignment] Allow to create internal order points to provision supplier consignment locations
-issue33209.diff # [account_invoice] Forbid to create credit notes from nonposted invoices
 issue7129.diff # [account_payment] Slow to list Lines to Pay