diff --git a/account_banking_mandate/models/account_move_line.py b/account_banking_mandate/models/account_move_line.py
index e5e385d47..3df33cafe 100644
--- a/account_banking_mandate/models/account_move_line.py
+++ b/account_banking_mandate/models/account_move_line.py
@@ -23,8 +23,8 @@ class AccountMoveLine(models.Model):
         mandate = self.mandate_id
         if not mandate and vals.get('mandate_id', False):
             mandate = mandate.browse(vals['mandate_id'])
+        partner_bank_id = vals.get('partner_bank_id', False)
         if not mandate:
-            partner_bank_id = vals.get('partner_bank_id', False)
             if partner_bank_id:
                 domain = [('partner_bank_id', '=', partner_bank_id)]
             else: