diff --git a/core/misc/active-link.js b/core/misc/active-link.js
index 8a1bb97..c33c0ce 100644
--- a/core/misc/active-link.js
+++ b/core/misc/active-link.js
@@ -16,8 +16,8 @@
    * same request with different query parameters may yield a different page
    * (e.g. pagers, exposed View filters).
    *
-   * Does not discriminate based on element type, so allows you to set the is-active
-   * class on any element: a, li…
+   * Does not discriminate based on element type, so allows you to set the
+   * is-active class on any element: a, li…
    */
   Drupal.behaviors.activeLinks = {
     attach: function (context) {
diff --git a/core/modules/editor/js/editor.admin.js b/core/modules/editor/js/editor.admin.js
index 08c3ca5..cbd1510 100644
--- a/core/modules/editor/js/editor.admin.js
+++ b/core/modules/editor/js/editor.admin.js
@@ -387,7 +387,7 @@
        */
       function filterStatusAllowsFeature(filterStatus, feature) {
         // An inactive filter by definition allows the feature.
-        if (!filterStatus.is-active) {
+        if (!filterStatus.active) {
           return true;
         }
 
@@ -578,7 +578,7 @@
    */
   Drupal.FilterStatus = function (name) {
     this.name = name;
-    this.is-active = false;
+    this.active = false;
     this.rules = [];
   };
 
@@ -695,7 +695,7 @@
       for (var filterID in Drupal.filterConfiguration.statuses) {
         if (Drupal.filterConfiguration.statuses.hasOwnProperty(filterID)) {
           // Update status.
-          Drupal.filterConfiguration.statuses[filterID].is-active = $('[name="filters[' + filterID + '][status]"]').is(':checked');
+          Drupal.filterConfiguration.statuses[filterID].active = $('[name="filters[' + filterID + '][status]"]').is(':checked');
 
           // Update current rules.
           if (Drupal.filterConfiguration.liveSettingParsers[filterID]) {