diff --git a/src/pretix/presale/views/widget.py b/src/pretix/presale/views/widget.py
index 112034ded0..eb244565af 100644
--- a/src/pretix/presale/views/widget.py
+++ b/src/pretix/presale/views/widget.py
@@ -405,7 +405,7 @@ class WidgetAPIProductList(EventListMixin, View):
                 availability['reason'] = 'full'
             else:  # unknown / no product
                 availability['color'] = 'none'
-                availability['text'] = ''
+                availability['text'] = gettext('More info')
                 availability['reason'] = 'unknown'
         elif ev.presale_is_running:
             availability['color'] = 'green'
diff --git a/src/tests/presale/test_widget.py b/src/tests/presale/test_widget.py
index a616d2b09a..7466e3ad04 100644
--- a/src/tests/presale/test_widget.py
+++ b/src/tests/presale/test_widget.py
@@ -611,9 +611,9 @@ class WidgetCartTest(CartTestMixin, TestCase):
                 'poweredby': '<a href="https://pretix.eu" target="_blank" rel="noopener">ticketing powered by pretix</a>',
                 'has_more_events': False,
                 'events': [
-                    {'name': 'Present', 'date_range': 'Jan. 1, 2019 11:00', 'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                    {'name': 'Present', 'date_range': 'Jan. 1, 2019 11:00', 'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                      'event_url': 'http://example.com/ccc/30c3/', 'subevent': se1.pk, 'location': ''},
-                    {'name': 'Future', 'date_range': 'Jan. 4, 2019 11:00', 'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                    {'name': 'Future', 'date_range': 'Jan. 4, 2019 11:00', 'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                      'event_url': 'http://example.com/ccc/30c3/', 'subevent': se2.pk, 'location': ''}
                 ]
             }
@@ -645,14 +645,14 @@ class WidgetCartTest(CartTestMixin, TestCase):
                         {'day': 1, 'date': '2019-01-01', 'events': [
                             {'name': 'Present', 'time': '11:00', 'continued': False, 'date_range': 'Jan. 1, 2019 11:00',
                              'location': '',
-                             'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                             'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                              'event_url': 'http://example.com/ccc/30c3/', 'subevent': se1.pk}]},
                         {'day': 2, 'date': '2019-01-02', 'events': []},
                         {'day': 3, 'date': '2019-01-03', 'events': []},
                         {'day': 4, 'date': '2019-01-04', 'events': [
                             {'name': 'Future', 'time': '11:00', 'continued': False, 'date_range': 'Jan. 4, 2019 11:00',
                              'location': '',
-                             'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                             'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                              'event_url': 'http://example.com/ccc/30c3/', 'subevent': se2.pk}]},
                         {'day': 5, 'date': '2019-01-05', 'events': []},
                         {'day': 6, 'date': '2019-01-06', 'events': []}
@@ -720,14 +720,14 @@ class WidgetCartTest(CartTestMixin, TestCase):
                     {'day_formatted': 'Tue, Jan 1st', 'date': '2019-01-01', 'events': [
                         {'name': 'Present', 'time': '11:00', 'continued': False, 'date_range': 'Jan. 1, 2019 11:00',
                          'location': '',
-                         'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                         'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                          'event_url': 'http://example.com/ccc/30c3/', 'subevent': se1.pk}], 'today': True},
                     {'day_formatted': 'Wed, Jan 2nd', 'date': '2019-01-02', 'events': [], 'today': False},
                     {'day_formatted': 'Thu, Jan 3rd', 'date': '2019-01-03', 'events': [], 'today': False},
                     {'day_formatted': 'Fri, Jan 4th', 'date': '2019-01-04', 'events': [
                         {'name': 'Future', 'time': '11:00', 'continued': False, 'date_range': 'Jan. 4, 2019 11:00',
                          'location': '',
-                         'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                         'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                          'event_url': 'http://example.com/ccc/30c3/', 'subevent': se2.pk}], 'today': False},
                     {'day_formatted': 'Sat, Jan 5th', 'date': '2019-01-05', 'events': [], 'today': False},
                     {'day_formatted': 'Sun, Jan 6th', 'date': '2019-01-06', 'events': [], 'today': False}
@@ -761,12 +761,12 @@ class WidgetCartTest(CartTestMixin, TestCase):
                      'event_url': 'http://example.com/ccc/30c3/',
                      'location': '',
                      'name': '30C3'},
-                    {'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                    {'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                      'date_range': 'Jan. 1, 2019 10:00',
                      'location': '',
                      'event_url': 'http://example.com/ccc/present/',
                      'name': 'Present'},
-                    {'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                    {'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                      'date_range': 'Jan. 4, 2019 10:00',
                      'location': '',
                      'event_url': 'http://example.com/ccc/future/',
@@ -866,7 +866,7 @@ class WidgetCartTest(CartTestMixin, TestCase):
                     [None,
                      {'date': '2019-01-01',
                       'day': 1,
-                      'events': [{'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                      'events': [{'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                                   'continued': False,
                                   'date_range': 'Jan. 1, 2019 10:00',
                                   'event_url': 'http://example.com/ccc/present/',
@@ -874,7 +874,7 @@ class WidgetCartTest(CartTestMixin, TestCase):
                                   'location': '',
                                   'subevent': None,
                                   'time': '10:00'},
-                                 {'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                                 {'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                                   'continued': False,
                                   'date_range': 'Jan. 1, 2019 11:00',
                                   'event_url': 'http://example.com/ccc/30c3/',
@@ -886,7 +886,7 @@ class WidgetCartTest(CartTestMixin, TestCase):
                      {'date': '2019-01-03', 'day': 3, 'events': []},
                      {'date': '2019-01-04',
                       'day': 4,
-                      'events': [{'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                      'events': [{'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                                   'continued': False,
                                   'date_range': 'Jan. 4, 2019 10:00',
                                   'event_url': 'http://example.com/ccc/future/',
@@ -894,7 +894,7 @@ class WidgetCartTest(CartTestMixin, TestCase):
                                   'location': '',
                                   'subevent': None,
                                   'time': '10:00'},
-                                 {'availability': {'color': 'none', 'text': '', 'reason': 'unknown'},
+                                 {'availability': {'color': 'none', 'text': 'More info', 'reason': 'unknown'},
                                   'continued': False,
                                   'date_range': 'Jan. 4, 2019 11:00',
                                   'event_url': 'http://example.com/ccc/30c3/',