diff --git a/src/animaltrack/web/routes/feed.py b/src/animaltrack/web/routes/feed.py
index a8fab74..ab43c6d 100644
--- a/src/animaltrack/web/routes/feed.py
+++ b/src/animaltrack/web/routes/feed.py
@@ -6,7 +6,7 @@ from __future__ import annotations
 import time
 from typing import Any
 
-from fasthtml.common import APIRouter, add_toast
+from fasthtml.common import APIRouter, add_toast, to_xml
 from starlette.requests import Request
 from starlette.responses import HTMLResponse
 
@@ -437,7 +437,7 @@ def _render_give_error(
         HTMLResponse with 422 status.
     """
     return HTMLResponse(
-        content=str(
+        content=to_xml(
             render_page(
                 request,
                 feed_page(
@@ -471,7 +471,7 @@ def _render_purchase_error(request, locations, feed_types, error_message):
         HTMLResponse with 422 status.
     """
     return HTMLResponse(
-        content=str(
+        content=to_xml(
             render_page(
                 request,
                 feed_page(