diff --git a/src/pretix/base/services/orders.py b/src/pretix/base/services/orders.py
index d4a0bfcd61..731d14ed4d 100644
--- a/src/pretix/base/services/orders.py
+++ b/src/pretix/base/services/orders.py
@@ -678,7 +678,10 @@ def _perform_order(event: str, payment_provider: str, position_ids: List[str],
 
         free_order_flow = payment and payment_provider == 'free' and order.total == Decimal('0.00') and not order.require_approval
         if free_order_flow:
-            payment.confirm(send_mail=False, lock=False)
+            try:
+                payment.confirm(send_mail=False, lock=False)
+            except Quota.QuotaExceededException:
+                pass
 
     invoice = order.invoices.last()  # Might be generated by plugin already
     if event.settings.get('invoice_generate') == 'True' and invoice_qualified(order):