diff --git a/index.d.ts b/index.d.ts
index a8a58c41..26bb276b 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -131,6 +131,8 @@ export interface OidcClientSettings {
   metadata?: Partial<OidcMetadata>;
   /** Provide signingKeys when authority server does not allow CORS on the jwks uri */
   signingKeys?: any[];
+  /** Can be used to seed or add additional values to the results of the discovery request */
+  metadataSeed?: Partial<OidcMetadata>;
   /** Your client application's identifier as registered with the OIDC/OAuth2 */
   client_id?: string;
   client_secret?: string;