diff --git a/src/tests/control/test_orders.py b/src/tests/control/test_orders.py
index 35107ac20..01bcecd6e 100644
--- a/src/tests/control/test_orders.py
+++ b/src/tests/control/test_orders.py
@@ -222,6 +222,7 @@ def test_order_transition_to_paid_in_time_success(client, env):
     client.login(email='dummy@dummy.dummy', password='dummy')
     client.post('/control/event/dummy/dummy/orders/FOO/transition', {
         'amount': str(env[2].pending_sum),
+        'payment_date': now().date().isoformat(),
         'status': 'p'
     })
     o = Order.objects.get(id=env[2].id)
@@ -238,6 +239,7 @@ def test_order_transition_to_paid_expired_quota_left(client, env):
     client.login(email='dummy@dummy.dummy', password='dummy')
     res = client.post('/control/event/dummy/dummy/orders/FOO/transition', {
         'status': 'p',
+        'payment_date': now().date().isoformat(),
         'amount': str(o.pending_sum),
     })
     o = Order.objects.get(id=env[2].id)
@@ -322,6 +324,7 @@ def test_order_transition(client, env, process):
     client.get('/control/event/dummy/dummy/orders/FOO/transition?status=' + process[1])
     client.post('/control/event/dummy/dummy/orders/FOO/transition', {
         'amount': str(o.pending_sum),
+        'payment_date': now().date().isoformat(),
         'status': process[1]
     })
     o = Order.objects.get(id=env[2].id)
@@ -691,6 +694,7 @@ def test_order_mark_paid_overdue_quota_blocked_by_waiting_list(client, env):
     client.login(email='dummy@dummy.dummy', password='dummy')
     response = client.post('/control/event/dummy/dummy/orders/FOO/transition', {
         'status': 'p',
+        'payment_date': now().date().isoformat(),
         'amount': str(o.pending_sum),
     }, follow=True)
     assert 'alert-success' in response.rendered_content
@@ -710,6 +714,7 @@ def test_order_mark_paid_blocked(client, env):
     client.login(email='dummy@dummy.dummy', password='dummy')
     response = client.post('/control/event/dummy/dummy/orders/FOO/transition', {
         'amount': str(o.pending_sum),
+        'payment_date': now().date().isoformat(),
         'status': 'p'
     }, follow=True)
     assert 'alert-danger' in response.rendered_content
@@ -731,6 +736,7 @@ def test_order_mark_paid_overpaid_epxired(client, env):
     client.login(email='dummy@dummy.dummy', password='dummy')
     response = client.post('/control/event/dummy/dummy/orders/FOO/transition', {
         'status': 'p',
+        'payment_date': now().date().isoformat(),
         'amount': '0.00',
         'force': 'on'
     }, follow=True)
@@ -753,6 +759,7 @@ def test_order_mark_paid_forced(client, env):
     client.login(email='dummy@dummy.dummy', password='dummy')
     response = client.post('/control/event/dummy/dummy/orders/FOO/transition', {
         'status': 'p',
+        'payment_date': now().date().isoformat(),
         'amount': str(o.pending_sum),
         'force': 'on'
     }, follow=True)