diff --git a/phpBB/adm/style/admin.css b/phpBB/adm/style/admin.css
index 9d281d4703..64b7e6522e 100644
--- a/phpBB/adm/style/admin.css
+++ b/phpBB/adm/style/admin.css
@@ -435,6 +435,8 @@ li {
 	font-size: 1.00em;
 	padding: 0;
 	border-right: 1px solid #CCCFD3;
+	position: relative;
+	z-index: 2;
 }
 
 .rtl #menu {