diff --git a/src/pretix/control/views/orders.py b/src/pretix/control/views/orders.py
index c47dd7881b..d2d1c3a967 100644
--- a/src/pretix/control/views/orders.py
+++ b/src/pretix/control/views/orders.py
@@ -1141,6 +1141,9 @@ class OrderRefundView(OrderView):
                         messages.error(self.request, _('You entered an order that could not be found.'))
                         is_valid = False
                     else:
+                        if order.event.currency != self.request.event.currency:
+                            messages.error(self.request, _('You entered an order in an event with a different currency.'))
+                            is_valid = False
                         refunds.append(OrderRefund(
                             order=self.order,
                             payment=None,
diff --git a/src/tests/control/test_orders.py b/src/tests/control/test_orders.py
index 47c0bdc9bb..6f27e87c6b 100644
--- a/src/tests/control/test_orders.py
+++ b/src/tests/control/test_orders.py
@@ -2175,22 +2175,28 @@ def test_refund_paid_order_offsetting_to_unknown(client, env):
 
 
 @pytest.mark.django_db
-def test_refund_paid_order_offsetting_to_expired(client, env):
+def test_refund_paid_order_offsetting_to_wrong_currency(client, env):
     with scopes_disabled():
         p = env[2].payments.last()
         p.confirm()
         client.login(email='dummy@dummy.dummy', password='dummy')
+        event2 = Event.objects.create(
+            organizer=env[0].organizer, name='Dummy', slug='dummy2',
+            date_from=now(), plugins='pretix.plugins.banktransfer,pretix.plugins.stripe,tests.testdummy',
+            currency='USD',
+        )
+        ticket2 = Item.objects.create(event=event2, name='Early-bird ticket',
+                                      category=None, default_price=23,
+                                      admission=True, personalized=True)
         o = Order.objects.create(
-            code='BAZ', event=env[0], email='dummy@dummy.test',
-            status=Order.STATUS_EXPIRED,
+            code='BAZ', event=event2, email='dummy@dummy.test',
+            status=Order.STATUS_PENDING,
             datetime=now(), expires=now() + timedelta(days=10),
             total=5, locale='en'
         )
-        o.positions.create(price=5, item=env[3])
-        q = Quota.objects.create(event=env[0], size=0)
-        q.items.add(env[3])
+        o.positions.create(price=5, item=ticket2)
 
-    client.post('/control/event/dummy/dummy/orders/FOO/refund', {
+    r = client.post('/control/event/dummy/dummy/orders/FOO/refund', {
         'start-partial_amount': '5.00',
         'start-mode': 'partial',
         'start-action': 'mark_pending',
@@ -2199,21 +2205,8 @@ def test_refund_paid_order_offsetting_to_expired(client, env):
         'manual_state': 'pending',
         'perform': 'on'
     }, follow=True)
-    p.refresh_from_db()
-    assert p.state == OrderPayment.PAYMENT_STATE_CONFIRMED
-    env[2].refresh_from_db()
-    with scopes_disabled():
-        r = env[2].refunds.last()
-        assert r.provider == "offsetting"
-        assert r.state == OrderRefund.REFUND_STATE_DONE
-        assert r.amount == Decimal('5.00')
-        assert env[2].status == Order.STATUS_PENDING
-        o.refresh_from_db()
-        assert o.status == Order.STATUS_EXPIRED
-        p2 = o.payments.first()
-        assert p2.provider == "offsetting"
-        assert p2.amount == Decimal('5.00')
-        assert p2.state == OrderPayment.PAYMENT_STATE_CONFIRMED
+    assert b'alert-danger' in r.content
+    assert b'different currency' in r.content
 
 
 @pytest.mark.django_db