diff --git a/trac/htdocs/libcaca.css b/trac/htdocs/libcaca.css
index 5dac6ae..e7e9dbd 100644
--- a/trac/htdocs/libcaca.css
+++ b/trac/htdocs/libcaca.css
@@ -474,7 +474,7 @@ table.listing tbody th.id {
 
 .forum-list th.group {
     background-color: #4E6A91;
-    border: 1px solid #a3c37a;
+    border: 1px solid #674E4E;
     padding: 5px;
     color: #fff;