diff --git a/packages/backend/src/server/api/mastodon/entities/oauth/oauth.ts b/packages/backend/src/server/api/mastodon/entities/oauth/oauth.ts
index 24a7008cd..a8498f728 100644
--- a/packages/backend/src/server/api/mastodon/entities/oauth/oauth.ts
+++ b/packages/backend/src/server/api/mastodon/entities/oauth/oauth.ts
@@ -4,8 +4,10 @@
  **/
 namespace OAuth {
     export type Application = {
+        id: string;
         name: string;
         website: string | null;
+        redirect_uri: string;
         vapid_key: string | undefined;
         client_id: string;
         client_secret: string;
diff --git a/packages/backend/src/server/api/mastodon/helpers/auth.ts b/packages/backend/src/server/api/mastodon/helpers/auth.ts
index 12adb67fd..41f872728 100644
--- a/packages/backend/src/server/api/mastodon/helpers/auth.ts
+++ b/packages/backend/src/server/api/mastodon/helpers/auth.ts
@@ -37,11 +37,13 @@ export class AuthHelpers {
         }).then((x) => OAuthApps.findOneByOrFail(x.identifiers[0]));
 
         return {
+            id: app.id,
             name: app.name,
-            website: website,
+            website: app.website,
+            redirect_uri: app.redirectUris.join('\n'),
             client_id: app.clientId,
             client_secret: app.clientSecret,
-            vapid_key: await fetchMeta().then(meta => meta.swPublicKey ?? undefined),
+            vapid_key: await fetchMeta().then(meta => meta.swPublicKey),
         };
     }