diff --git a/modules/ui/states-editor.js b/modules/ui/states-editor.js
index feef2cfb..de5775b6 100644
--- a/modules/ui/states-editor.js
+++ b/modules/ui/states-editor.js
@@ -167,7 +167,7 @@ function editStates() {
     if (customization || !state) return;
     const path = regions.select("#state"+state).attr("d");
     debug.append("path").attr("class", "highlight").attr("d", path)
-      .attr("stroke", "red").attr("stroke-width", 1).attr("opacity", 1)
+      .attr("fill", "none").attr("stroke", "red").attr("stroke-width", 1).attr("opacity", 1)
       .attr("filter", "url(#blur1)").call(transition);
   }