diff --git a/umap/static/umap/js/umap.forms.js b/umap/static/umap/js/umap.forms.js
index bf9dcdf7..0d522ff5 100644
--- a/umap/static/umap/js/umap.forms.js
+++ b/umap/static/umap/js/umap.forms.js
@@ -860,6 +860,7 @@ L.FormBuilder.Range = L.FormBuilder.Input.extend({
       options += `<option value="${i.toFixed(digits)}" label="${i.toFixed(digits)}"></option>`
     }
     datalist.innerHTML = options
+    L.FormBuilder.Input.prototype.buildHelpText.call(this)
   },
 })