diff --git a/app/content/serializers/event.py b/app/content/serializers/event.py
index 01b8a2795..b18230a8e 100644
--- a/app/content/serializers/event.py
+++ b/app/content/serializers/event.py
@@ -60,6 +60,7 @@ class Meta:
             "permissions",
             "priority_pools",
             "paid_information",
+            "is_paid_event",
             "contact_person",
         )