diff --git a/trac/htdocs/main.css b/trac/htdocs/main.css
index 724b9d8..277dae3 100644
--- a/trac/htdocs/main.css
+++ b/trac/htdocs/main.css
@@ -77,3 +77,6 @@ p {
     background: #88AA77;
     color: #224422;
 }
+#mainnav .active :link:hover, #mainnav .active :visited:hover  {
+    border: none;
+}