diff --git a/plugins/libkolab/skins/elastic/libkolab.less b/plugins/libkolab/skins/elastic/libkolab.less
index d6bb6859..bc30161d 100644
--- a/plugins/libkolab/skins/elastic/libkolab.less
+++ b/plugins/libkolab/skins/elastic/libkolab.less
@@ -207,7 +207,7 @@
         right: 0;
         min-width: 2em;
         line-height: 1.4rem;
-        margin: (@listing-line-height - 1.4rem)/2;
+        margin: (@listing-line-height - 1.4 * @page-font-size)/2;
         padding: 0 .3em;
         border-radius: .4em;
         background: @color-list-secondary;
@@ -217,7 +217,7 @@
 
         html.touch & {
             line-height: 2rem;
-            margin: (@listing-touch-line-height - 2rem)/2;
+            margin: (@listing-touch-line-height - 2 * @page-font-size)/2;
         }
     }
 }