diff --git a/packages/glitch-server/main.ts b/packages/glitch-server/main.ts
index 305187c0..54412126 100644
--- a/packages/glitch-server/main.ts
+++ b/packages/glitch-server/main.ts
@@ -13,7 +13,7 @@ export const handleGlitchRequest = async (
     let path = url.pathname;
     const accessToken = req.headers
         .get("Cookie")
-        ?.match(/_mastodon_session=(.*?)(;|$)/)?.[1];
+        ?.match(/_session_id=(.*?)(;|$)/)?.[1];
     const user = await retrieveUserFromToken(accessToken ?? "");
 
     // Strip leading /web from path
diff --git a/server/api/api/auth/mastodon-login/index.ts b/server/api/api/auth/mastodon-login/index.ts
index 3a13f55a..0527b66e 100644
--- a/server/api/api/auth/mastodon-login/index.ts
+++ b/server/api/api/auth/mastodon-login/index.ts
@@ -67,7 +67,7 @@ export default apiRoute<typeof meta, typeof schema>(
         return new Response(null, {
             headers: {
                 Location: "/",
-                "Set-Cookie": `_mastodon_session=${accessToken}; Domain=${
+                "Set-Cookie": `_session_id=${accessToken}; Domain=${
                     new URL(config.http.base_url).hostname
                 }; SameSite=Lax; Path=/; HttpOnly`,
             },