diff --git a/packages/client/lib/createOnAuthenticate.js b/packages/client/lib/createOnAuthenticate.js
index 8d8c4ea1..e795c150 100644
--- a/packages/client/lib/createOnAuthenticate.js
+++ b/packages/client/lib/createOnAuthenticate.js
@@ -2,12 +2,14 @@ const ANONYMOUS = "ANONYMOUS";
 const PLAIN = "PLAIN";
 
 export default function createOnAuthenticate(credentials, userAgent) {
-  return async function onAuthenticate(authenticate, mechanisms, fast, entity) {
+  return async function onAuthenticate(...args) {
     if (typeof credentials === "function") {
-      await credentials(authenticate, mechanisms, fast);
+      await credentials(...args);
       return;
     }
 
+    const [authenticate, mechanisms, fast, entity] = args;
+
     credentials.token ??= await fast?.fetch();
 
     const mechanism = getMechanism({ mechanisms, entity, credentials });