diff --git a/src/pretix/plugins/paypal/payment.py b/src/pretix/plugins/paypal/payment.py
index 0977864110..071d273654 100644
--- a/src/pretix/plugins/paypal/payment.py
+++ b/src/pretix/plugins/paypal/payment.py
@@ -141,14 +141,7 @@ class Paypal(BasePaymentProvider):
                  help_text=_('Any value entered here will be added in front of the regular booking reference '
                              'containing the order number.'),
                  required=False,
-             )),
-            ('postfix',
-             forms.CharField(
-                 label=_('Reference postfix'),
-                 help_text=_('Any value entered here will be added behind the regular booking reference '
-                             'containing the order number.'),
-                 required=False,
-             )),
+             ))
         ]
 
         d = OrderedDict(
@@ -295,11 +288,11 @@ class Paypal(BasePaymentProvider):
                         "item_list": {
                             "items": [
                                 {
-                                    "name": '{prefix}{orderstring}{postfix}'.format(
-                                        prefix='{} '.format(self.settings.prefix) if self.settings.prefix else '',
-                                        orderstring=__('Order for %s') % str(request.event),
-                                        postfix=' {}'.format(self.settings.postfix) if self.settings.postfix else ''
-                                    ),
+                                    "name": ('{} '.format(self.settings.prefix) if self.settings.prefix else '') +
+                                    __('Order for %s') % str(request.event),
+                                    "quantity": 1,
+                                    "price": self.format_price(cart['total']),
+                                    "currency": request.event.currency
                                 }
                             ]
                         },
@@ -308,12 +301,7 @@ class Paypal(BasePaymentProvider):
                             "total": self.format_price(cart['total'])
                         },
                         "description": __('Event tickets for {event}').format(event=request.event.name),
-                        "payee": payee,
-                        "custom": '{prefix}{slug}{postfix}'.format(
-                            prefix='{} '.format(self.settings.prefix) if self.settings.prefix else '',
-                            slug=request.event.slug.upper(),
-                            postfix=' {}'.format(self.settings.postfix) if self.settings.postfix else ''
-                        )
+                        "payee": payee
                     }
                 ]
             })
@@ -410,13 +398,9 @@ class Paypal(BasePaymentProvider):
                     "value": {
                         "items": [
                             {
-                                "name": '{prefix}{orderstring}{postfix}'.format(
-                                    prefix='{} '.format(self.settings.prefix) if self.settings.prefix else '',
-                                    orderstring=__('Order {slug}-{code}').format(
-                                        slug=self.event.slug.upper(),
-                                        code=payment_obj.order.code
-                                    ),
-                                    postfix=' {}'.format(self.settings.postfix) if self.settings.postfix else ''
+                                "name": ('{} '.format(self.settings.prefix) if self.settings.prefix else '') +
+                                __('Order {slug}-{code}').format(
+                                    slug=self.event.slug.upper(), code=payment_obj.order.code
                                 ),
                                 "quantity": 1,
                                 "price": self.format_price(payment_obj.amount),
@@ -428,14 +412,11 @@ class Paypal(BasePaymentProvider):
                 {
                     "op": "replace",
                     "path": "/transactions/0/description",
-                    "value": '{prefix}{orderstring}{postfix}'.format(
-                        prefix='{} '.format(self.settings.prefix) if self.settings.prefix else '',
-                        orderstring=__('Order {order} for {event}').format(
-                            event=request.event.name,
-                            order=payment_obj.order.code
-                        ),
-                        postfix=' {}'.format(self.settings.postfix) if self.settings.postfix else ''
-                    ),
+                    "value": ('{} '.format(self.settings.prefix) if self.settings.prefix else '') +
+                    __('Order {order} for {event}').format(
+                        event=request.event.name,
+                        order=payment_obj.order.code
+                    )
                 }
             ])
             try:
@@ -634,13 +615,10 @@ class Paypal(BasePaymentProvider):
                         "item_list": {
                             "items": [
                                 {
-                                    "name": '{prefix}{orderstring}{postfix}'.format(
-                                        prefix='{} '.format(self.settings.prefix) if self.settings.prefix else '',
-                                        orderstring=__('Order {slug}-{code}').format(
-                                            slug=self.event.slug.upper(),
-                                            code=payment_obj.order.code
-                                        ),
-                                        postfix=' {}'.format(self.settings.postfix) if self.settings.postfix else ''
+                                    "name": ('{} '.format(self.settings.prefix) if self.settings.prefix else '') +
+                                    __('Order {slug}-{code}').format(
+                                        slug=self.event.slug.upper(),
+                                        code=payment_obj.order.code
                                     ),
                                     "quantity": 1,
                                     "price": self.format_price(payment_obj.amount),
@@ -652,21 +630,12 @@ class Paypal(BasePaymentProvider):
                             "currency": request.event.currency,
                             "total": self.format_price(payment_obj.amount)
                         },
-                        "description": '{prefix}{orderstring}{postfix}'.format(
-                            prefix='{} '.format(self.settings.prefix) if self.settings.prefix else '',
-                            orderstring=__('Order {order} for {event}').format(
-                                event=request.event.name,
-                                order=payment_obj.order.code
-                            ),
-                            postfix=' {}'.format(self.settings.postfix) if self.settings.postfix else ''
-                        ),
-                        "payee": payee,
-                        "custom": '{prefix}{slug}-{code}{postfix}'.format(
-                            prefix='{} '.format(self.settings.prefix) if self.settings.prefix else '',
-                            slug=self.event.slug.upper(),
-                            code=payment_obj.order.code,
-                            postfix=' {}'.format(self.settings.postfix) if self.settings.postfix else ''
+                        "description": ('{} '.format(self.settings.prefix) if self.settings.prefix else '') +
+                        __('Order {order} for {event}').format(
+                            event=request.event.name,
+                            order=payment_obj.order.code
                         ),
+                        "payee": payee
                     }
                 ]
             })