diff --git a/public/css/icinga/base.less b/public/css/icinga/base.less
index 72f583df4..5baaa9d00 100644
--- a/public/css/icinga/base.less
+++ b/public/css/icinga/base.less
@@ -65,7 +65,7 @@
 
 // Font sizes
 @font-size: 0.750em; // 12px
-@font-size-small: 0.917em; // 11px
+@font-size-small: 11/12em; // 11px
 @font-size-dashboard: 3.5em; // 56px
 @font-size-dashboard-small: 1.1em; // 17px
 @font-weight-bold: 600;
diff --git a/public/css/icinga/menu.less b/public/css/icinga/menu.less
index 95de09837..d4c21f4ed 100644
--- a/public/css/icinga/menu.less
+++ b/public/css/icinga/menu.less
@@ -137,7 +137,7 @@ ul:not(.nav-level-2) > .selected > a {
   > a {
     color: @menu-2ndlvl-color;
     font-size: @font-size-small;
-    padding: 0.364em 0.545em 0.364em (@icon-width + .75em);
+    padding: 0.364em 0.545em 0.364em (@icon-width + .75em)/@font-size-small;
   }
 
   &:not(.selected):not(.active) > a:hover,