diff --git a/core/modules/filter/filter.filter_html.admin.es6.js b/core/modules/filter/filter.filter_html.admin.es6.js
index b60638dafa2692ef79ed6261a595cd6e73210e75..260f98ce70f3712a113e99205f504352f6438d5e 100644
--- a/core/modules/filter/filter.filter_html.admin.es6.js
+++ b/core/modules/filter/filter.filter_html.admin.es6.js
@@ -90,7 +90,7 @@
         that.$allowedHTMLFormItem = $(formItem);
         that.$allowedHTMLDescription = that.$allowedHTMLFormItem
           .closest('.js-form-item')
-          .find('.description');
+          .find('#edit-filters-filter-html-settings-allowed-html--description');
         that.userTags = that._parseSetting(formItem.value);
 
         // Update the new allowed tags based on added text editor features.
diff --git a/core/modules/filter/filter.filter_html.admin.js b/core/modules/filter/filter.filter_html.admin.js
index a25268bfe721ad5d1cb742d9a50ab89bbf016ca1..0dc585c7a33a77a36f39e436d609b0ec70913732 100644
--- a/core/modules/filter/filter.filter_html.admin.js
+++ b/core/modules/filter/filter.filter_html.admin.js
@@ -42,7 +42,7 @@
       const that = this;
       once('filter-filter_html-updating', '[name="filters[filter_html][settings][allowed_html]"]', context).forEach(formItem => {
         that.$allowedHTMLFormItem = $(formItem);
-        that.$allowedHTMLDescription = that.$allowedHTMLFormItem.closest('.js-form-item').find('.description');
+        that.$allowedHTMLDescription = that.$allowedHTMLFormItem.closest('.js-form-item').find('#edit-filters-filter-html-settings-allowed-html--description');
         that.userTags = that._parseSetting(formItem.value);
         $(document).on('drupalEditorFeatureAdded', (e, feature) => {
           that.newFeatures[feature.name] = feature.rules;