diff --git a/src/pages/feeds/feed.json.ts b/src/pages/feeds/feed.json.ts
index 727f3a0..5aa3d18 100644
--- a/src/pages/feeds/feed.json.ts
+++ b/src/pages/feeds/feed.json.ts
@@ -4,5 +4,5 @@ import type { APIContext } from 'astro';
 export async function GET(context: APIContext): Promise<Response> {
   const feed = await computeFeed();
 
-  return new Response(feed.json1())
+  return new Response(feed.json1(), { headers: { "Content-Type": "application/json" } })
 }
\ No newline at end of file
diff --git a/src/pages/feeds/feed.xml.ts b/src/pages/feeds/feed.xml.ts
index 1f0cf6d..a1046a0 100644
--- a/src/pages/feeds/feed.xml.ts
+++ b/src/pages/feeds/feed.xml.ts
@@ -3,5 +3,5 @@ import { computeFeed, injectXSL } from "../../lib/feed.ts";
 export async function GET(): Promise<Response> {
   const feed = await computeFeed();
 
-  return new Response(injectXSL(feed.atom1(), "/feed.xsl"))
+  return new Response(injectXSL(feed.atom1(), "/feed.xsl"), { headers: { "Content-Type": "application/atom+xml" } })
 }
\ No newline at end of file