diff --git a/public/css/icinga/widgets.less b/public/css/icinga/widgets.less
index 5101ceb8c..93cd5b745 100644
--- a/public/css/icinga/widgets.less
+++ b/public/css/icinga/widgets.less
@@ -159,7 +159,6 @@ ul.tree li a {
   line-height: 2em;
   text-decoration: none;
   color: #777;
-  outline: 0;
   background-repeat: no-repeat;
   background-position: 0.8em 0.4em;
 }