From f93b2211a62f1bedd24da226185f7a0fd0fee3fc Mon Sep 17 00:00:00 2001
From: Raphael Michel <mail@raphaelmichel.de>
Date: Fri, 5 Aug 2016 10:40:00 +0200
Subject: [PATCH] Fixed a bug that lead to payment fees on free items

---
 src/pretix/presale/views/__init__.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/pretix/presale/views/__init__.py b/src/pretix/presale/views/__init__.py
index 3bcce57f70..1fec1bf885 100644
--- a/src/pretix/presale/views/__init__.py
+++ b/src/pretix/presale/views/__init__.py
@@ -1,4 +1,5 @@
 from datetime import timedelta
+from decimal import Decimal
 from itertools import groupby
 
 from django.utils.functional import cached_property
@@ -83,6 +84,8 @@ class CartMixin:
         }
 
     def get_payment_fee(self, total):
+        if total == 0:
+            return Decimal('0.00')
         payment_fee = 0
         if 'payment' in self.request.session:
             responses = register_payment_providers.send(self.request.event)