diff --git a/argocd/apps/mastodon.yaml b/argocd/apps/mastodon.yaml
index a9314d7..78cef7c 100644
--- a/argocd/apps/mastodon.yaml
+++ b/argocd/apps/mastodon.yaml
@@ -84,8 +84,8 @@ spec:
               displayName: "t0rt1k.tech matrix"
               issuer: https://auth.t0rt1k.tech/
               discovery: true
-              scope: "openid profile"
-              uidField: preferred_username
+              scope: "openid"
+              uidField: username
               clientId: 01KXBMX4RKEYG24GW7ZXXHFD01
               clientSecret: o9GCnfhbw1jFaTPwJ4vm
               redirectUri: https://mastodon.t0rt1k.tech/auth/auth/openid_connect/callback