Tweaked nav
diff --git a/user_guide/libraries/calendar.html b/user_guide/libraries/calendar.html
index f166cf8..941ebf5 100644
--- a/user_guide/libraries/calendar.html
+++ b/user_guide/libraries/calendar.html
@@ -236,7 +236,7 @@
<div id="footer">
<p>
-Previous Topic: <a href="benchmark.html">Benchmarking Class</a>
+Previous Topic: <a href="cart.html">Cart Class</a>
·
<a href="#top">Top of Page</a> ·
<a href="../index.html">User Guide Home</a> ·