diff --git a/public/css/icinga/configmenu.less b/public/css/icinga/configmenu.less
index bebb87d3d..b27bdc244 100644
--- a/public/css/icinga/configmenu.less
+++ b/public/css/icinga/configmenu.less
@@ -234,7 +234,7 @@
   border: 1px solid @gray-lighter;
   background: @body-bg-color;
   box-shadow: 0 0 1em 0 rgba(0,0,0,.25);
-  z-index: 1;
+  z-index: 15;
   .rounded-corners();
 
   a {