diff --git a/plugins/kolab_delegation/skins/larry/style.css b/plugins/kolab_delegation/skins/larry/style.css
index 7a29ed29..67dc18d0 100644
--- a/plugins/kolab_delegation/skins/larry/style.css
+++ b/plugins/kolab_delegation/skins/larry/style.css
@@ -61,7 +61,7 @@ div.foldersblock h3.note {
 	padding: 2px;
 	padding-top: 4px;
 	min-width: 2em;
-	background: #d6eaf3;
+	background-color: #d6eaf3;
 	border-bottom: 2px solid #fff;
 	text-align: center;
 }