diff --git a/src/services/user_highlighter/user_highlighter.js b/src/services/user_highlighter/user_highlighter.js
index 45fbffec2..697496c91 100644
--- a/src/services/user_highlighter/user_highlighter.js
+++ b/src/services/user_highlighter/user_highlighter.js
@@ -2,7 +2,7 @@ import { hex2rgb } from '../color_convert/color_convert.js'
 
 const highlightStyle = (prefs) => {
   if (prefs === undefined) return
-  const { color, type } = prefs
+  const { color = '#FFFFFF', type } = prefs
   if (typeof color !== 'string') return
   const rgb = hex2rgb(color)
   if (rgb == null) return