diff --git a/www/css/ui.css b/www/css/ui.css
index 604f86f..60a22b3 100644
--- a/www/css/ui.css
+++ b/www/css/ui.css
@@ -50,6 +50,7 @@ main table.list.session th:nth-child(2){width:10rem;}
 
 main table.list.session-resume th:nth-child(1){width:10rem;}
 
+main table.list.challenge th:nth-child(1){width:10rem;}
 main table.list.challenge th:nth-child(2){width:10rem;}
 
 main table.list.invite th:nth-child(1){width:15rem;}