diff --git a/trac/htdocs/main.css b/trac/htdocs/main.css
index 3e0246e..5dc06b5 100644
--- a/trac/htdocs/main.css
+++ b/trac/htdocs/main.css
@@ -13,8 +13,8 @@ body {
    border-bottom: 2px solid #945973;
 }
 #main {
-    -moz-border-radius-topleft: 5px;
-    -moz-border-radius-topright: 5px;
+    -moz-border-radius-bottomleft: 5px;
+    -moz-border-radius-bottomright: 5px;
 }
 #mainnav {
    border-top: 1px solid #88AA77;