diff --git a/config/finances-fireflyiii.nix b/config/finances-fireflyiii.nix
index 16b5019..5818fe2 100644
--- a/config/finances-fireflyiii.nix
+++ b/config/finances-fireflyiii.nix
@@ -25,8 +25,8 @@ in
       DB_USERNAME = name;
       DB_PASSWORD = config.my-lxc.finances.db.password;
       AUTHENTICATION_GUARD = "remote_user_guard";
-      AUTHENTICATION_GUARD_HEADER = "HTTP_REMOTE_EMAIL";
-      AUTHENTICATION_GUARD_EMAIL = "HTTP_REMOTE_EMAIL";
+      AUTHENTICATION_GUARD_HEADER = "HTTP_X_AUTHENTIK_EMAIL";
+      AUTHENTICATION_GUARD_EMAIL = "HTTP_X_AUTHENTIK_EMAIL";
       APP_URL = "https://${tools.build_hostname "finances"}";
       APP_KEY_FILE = "/etc/firefly-iii/app.key";
       TRUSTED_PROXIES = tools.build_ip "proxy";