diff --git a/account_constraints/model/account_move_line.py b/account_constraints/model/account_move_line.py
index 1e2f30cb2..78ed280f1 100644
--- a/account_constraints/model/account_move_line.py
+++ b/account_constraints/model/account_move_line.py
@@ -126,6 +126,9 @@ class AccountMoveLine(models.Model):
     @api.constrains('amount_currency')
     def _check_currency_amount(self):
         for l in self:
+            # If account have a second currency, don't apply constraint
+            if l.account_id.currency_id:
+                continue
             if l.amount_currency:
                 if ((l.amount_currency > 0.0 and l.credit > 0.0) or
                         (l.amount_currency < 0.0 and l.debit > 0.0)):