diff --git a/user_guide/nav/nav.js b/user_guide/nav/nav.js
index 9ff53dc..f0258cd 100644
--- a/user_guide/nav/nav.js
+++ b/user_guide/nav/nav.js
@@ -73,7 +73,7 @@
'<h3>Class Reference</h3>' +
'<ul>' +
'<li><a href="'+base+'libraries/benchmark.html">Benchmarking Class</a></li>' +
- '<li><a href="'+base+'libraries/calendar.html">Cart Class</a></li>' +
+ '<li><a href="'+base+'libraries/cart.html">Cart Class</a></li>' +
'<li><a href="'+base+'libraries/calendar.html">Calendar Class</a></li>' +
'<li><a href="'+base+'libraries/config.html">Config Class</a></li>' +
'<li><a href="'+base+'database/index.html">Database Class</a></li>' +