diff --git a/src/pretix/base/orderimport.py b/src/pretix/base/orderimport.py
index 69cffb75b0..c7bc18a34b 100644
--- a/src/pretix/base/orderimport.py
+++ b/src/pretix/base/orderimport.py
@@ -528,7 +528,7 @@ class Secret(ImportColumn):
         super().__init__(*args)
 
     def clean(self, value, previous_values):
-        if value and (value in self._cached or OrderPosition.all.filter(order__event=self.event, secret=value).exists()):
+        if value and (value in self._cached or OrderPosition.all.filter(order__event__organizer=self.event.organizer, secret=value).exists()):
             raise ValidationError(
                 _('You cannot assign a position secret that already exists.')
             )