diff --git a/trac/htdocs/libcaca.css b/trac/htdocs/libcaca.css
index 5206ba4..dfb57fd 100644
--- a/trac/htdocs/libcaca.css
+++ b/trac/htdocs/libcaca.css
@@ -28,6 +28,7 @@ h1, h2, h3 {
     -moz-border-radius-topleft:5px;
     -moz-border-radius-topright:5px;
     border: none;
+    font-weight: bold;
 }
 .nav ul {text-align: right;}
 #mainnav :link, #mainnav :visited {