diff --git a/app/schemas.py b/app/schemas.py
index ceb17bedb..5692b78f8 100644
--- a/app/schemas.py
+++ b/app/schemas.py
@@ -449,7 +449,7 @@ class NotificationWithTemplateSchema(BaseSchema):
     class Meta:
         model = models.Notification
         strict = True
-        exclude = ('_personalisation', )
+        exclude = ('_personalisation', 'scheduled_notification')
 
     template = fields.Nested(
         TemplateSchema,