diff --git a/authentication.md b/authentication.md
index d25eed8..01ee27e 100644
--- a/authentication.md
+++ b/authentication.md
@@ -154,7 +154,7 @@ const tokenFetch = async (url, options) => {
 	let bearer = accessToken;
 
 	//if expired (10 minutes, normally)
-	const expired = new Date(decode(accessToken).exp * 600) < Date.now();
+	const expired = new Date(decode(accessToken).exp) < Date.now() / 1000;
 
 	if (expired) {
 		...