diff --git a/superset/assets/src/dashboard/stylesheets/components/chart.less b/superset/assets/src/dashboard/stylesheets/components/chart.less
index 2e1544794c..210fefddee 100644
--- a/superset/assets/src/dashboard/stylesheets/components/chart.less
+++ b/superset/assets/src/dashboard/stylesheets/components/chart.less
@@ -42,7 +42,7 @@
 
   &.fade-in {
     border-radius: 4px;
-    box-shadow: inset 0 0 0 2px fade(@shadow-highlight, 1),
+    box-shadow: inset 0 0 0 2px @shadow-highlight,
       0 0 0 3px fade(@shadow-highlight, @opacity-light);
     transition: box-shadow 1s ease-in-out;
   }