diff --git a/src/pretix/base/models/event.py b/src/pretix/base/models/event.py
index 06e8623b6c..b60546123a 100644
--- a/src/pretix/base/models/event.py
+++ b/src/pretix/base/models/event.py
@@ -143,7 +143,7 @@ class Event(LoggedModel):
         if ``show_date_to`` is ``False``.
         """
         tz = tz or pytz.timezone(self.settings.timezone)
-        if not self.settings.show_date_to:
+        if not self.settings.show_date_to or not self.date_to:
             return ""
         return _date(
             self.date_to.astimezone(tz),