diff --git a/src/core/js/tour.js b/src/core/js/tour.js
index 5d2c32aa148ab2ad53c3a4986f09616f3d091232..7b47dd37239c29b5c5e7edb67f1d16fe43bf8ad6 100644
--- a/src/core/js/tour.js
+++ b/src/core/js/tour.js
@@ -698,6 +698,8 @@ var tour = new function() {
 
     /**
      * Initialize the tour.
+     *
+     * The `refresh` argument is currently only used interactively on the debugging console.
      */
     this.init = async function _in(refresh) {
         try {