diff --git a/program/serializers.py b/program/serializers.py
index 06286f8813c757b059f115c9e5e6cfbcd0723b30..73d64152bb6f5b490eb88fc1244a70cd109a91b3 100644
--- a/program/serializers.py
+++ b/program/serializers.py
@@ -1027,7 +1027,7 @@ class NoteSerializer(serializers.ModelSerializer):
 
         user = self.context.get("request").user
         # user_is_privileged = user.groups.filter(name=settings.PRIVILEGED_GROUP).exists()
-        user_is_owner = user in instance.timeslot.schedule.show.owners
+        user_is_owner = user in instance.timeslot.schedule.show.owners.all()
 
         # Only superusers and owners of a show are allowed to update a note
         # Being a privileged user overrides the ownership