diff --git a/core/modules/responsive_preview/js/responsive-preview.js b/core/modules/responsive_preview/js/responsive-preview.js
index d78bac6..5bc4853 100644
--- a/core/modules/responsive_preview/js/responsive-preview.js
+++ b/core/modules/responsive_preview/js/responsive-preview.js
@@ -59,7 +59,7 @@ Drupal.behaviors.responsivePreview = {
       });
 
       // The toolbar tab view.
-      var $tab = $(context).find('#responsive-preview-toolbar-tab');
+      var $tab = $('#responsive-preview-toolbar-tab').once('responsive-preview');
       if ($tab.length > 0) {
         Drupal.responsivePreview.views.tabView = new Drupal.responsivePreview.TabView({
           el: $tab.get(),
@@ -73,7 +73,7 @@ Drupal.behaviors.responsivePreview = {
         });
       }
       // The control block view.
-      var $block = $(context).find('#block-responsive-preview-controls');
+      var $block = $('#block-responsive-preview-controls').once('responsive-preview');
       if ($block.length > 0) {
         Drupal.responsivePreview.views.blockView = new Drupal.responsivePreview.BlockView({
           el: $block.get(),