diff --git a/core/modules/ckeditor/lib/Drupal/ckeditor/Plugin/Editor/CKEditor.php b/core/modules/ckeditor/lib/Drupal/ckeditor/Plugin/Editor/CKEditor.php
index 3eefd37..8e1c302 100644
--- a/core/modules/ckeditor/lib/Drupal/ckeditor/Plugin/Editor/CKEditor.php
+++ b/core/modules/ckeditor/lib/Drupal/ckeditor/Plugin/Editor/CKEditor.php
@@ -294,7 +294,7 @@ public function getJSSettings(EditorEntity $editor) {
 
     // Parse all CKEditor plugin JavaScript files for translations.
     if ($this->moduleHandler->moduleExists('locale')) {
-      locale_js_translate(array_values($settings['drupalExternalPlugins']));
+      locale_js_translate(array_values($external_plugin_files));
     }
 
     ksort($settings);