diff --git a/public/css/icinga/menu.less b/public/css/icinga/menu.less
index 48740f9b9..be607a16e 100644
--- a/public/css/icinga/menu.less
+++ b/public/css/icinga/menu.less
@@ -156,6 +156,10 @@
   > a > .badge {
     display: none;
   }
+
+  img.icon {
+    opacity: .6;
+  }
 }
 
 #menu .nav-level-1 > .nav-item:not(.active):hover {