diff --git a/index.html b/index.html
index 4398668..b04f824 100644
--- a/index.html
+++ b/index.html
@@ -105,7 +105,8 @@ <h1 class="protected__content__heading">You need a password to continue</h1>
             var password = document.querySelectorAll('[data-id="password"]')
 
             function login(secret) {
-                var hash = sha1(secret)
+                var prefix = 'protected-github-pages-';
+                var hash = sha1(prefix + secret)
                 var url = hash + "/index.html"
                 var alert = document.querySelectorAll('[data-id="alert"]')