diff --git a/core/block_svg.js b/core/block_svg.js
index eef7b2175..8556026fc 100644
--- a/core/block_svg.js
+++ b/core/block_svg.js
@@ -1520,7 +1520,7 @@ Blockly.BlockSvg.prototype.setHighlighted = function(highlighted) {
     this.svgPathLight_.style.display = 'none';
   } else {
     this.svgPath_.removeAttribute('filter');
-    this.svgPathLight_.style.display = 'block';
+    delete this.svgPathLight_.style.display;
   }
 };