diff --git a/trac/htdocs/main.css b/trac/htdocs/main.css
index bcbc4b8..f07dc99 100644
--- a/trac/htdocs/main.css
+++ b/trac/htdocs/main.css
@@ -53,11 +53,11 @@ p {
   text-align: inherit;
 }
 
-#mainav {
+#mainnav {
     background: #945973;
     border-color: #224422;
 }
-#mainav li {
+#mainnav li {
     border-color: #224422;
 }
 #footer {