diff --git a/public/css/icinga/responsive.less b/public/css/icinga/responsive.less
index 0ed3b8c1e..3879acd65 100644
--- a/public/css/icinga/responsive.less
+++ b/public/css/icinga/responsive.less
@@ -74,6 +74,12 @@
     z-index: 3;
   }
 
+  #menu {
+    -webkit-box-shadow: none;
+       -moz-box-shadow: none;
+            box-shadow: none;
+  }
+
   .dashboard > div.container {
     width: 100%;
   }