diff --git a/src/pretix/presale/views/cart.py b/src/pretix/presale/views/cart.py
index 7ff08e75c2..8c26e77eb2 100644
--- a/src/pretix/presale/views/cart.py
+++ b/src/pretix/presale/views/cart.py
@@ -430,7 +430,7 @@ class RedeemView(NoSearchIndexViewMixin, EventViewMixin, TemplateView):
         else:
             context['cart_redirect'] = eventreverse(self.request.event, 'presale:event.index')
         if context['cart_redirect'].startswith('https:'):
-            context['cart_redirect'] = context['cart_redirect'].split('/', 3)[3]
+            context['cart_redirect'] = '/' + context['cart_redirect'].split('/', 3)[3]
 
         return context
 
diff --git a/src/pretix/presale/views/event.py b/src/pretix/presale/views/event.py
index 19f27c4ddd..b8d50055c8 100644
--- a/src/pretix/presale/views/event.py
+++ b/src/pretix/presale/views/event.py
@@ -294,7 +294,7 @@ class EventIndex(EventViewMixin, EventListMixin, CartMixin, TemplateView):
         if self.request.event.settings.redirect_to_checkout_directly:
             context['cart_redirect'] = eventreverse(self.request.event, 'presale:event.checkout.start')
             if context['cart_redirect'].startswith('https:'):
-                context['cart_redirect'] = context['cart_redirect'].split('/', 3)[3]
+                context['cart_redirect'] = '/' + context['cart_redirect'].split('/', 3)[3]
         else:
             context['cart_redirect'] = self.request.path