diff --git a/src/pretix/base/models/event.py b/src/pretix/base/models/event.py
index 59ab8060ef..53ecdf34b2 100644
--- a/src/pretix/base/models/event.py
+++ b/src/pretix/base/models/event.py
@@ -861,7 +861,7 @@ class Event(EventMixin, LoggedModel):
         Returns the currently configured ticket secret generator.
         """
         tsgs = self.ticket_secret_generators
-        return tsgs[self.settings.ticket_secret_generator]
+        return tsgs.get(self.settings.ticket_secret_generator, tsgs.get('random'))
 
     def get_data_shredders(self) -> dict:
         """