diff --git a/editor_file.admin.inc b/editor_file.admin.inc
index 4b70939..ccde568 100644
--- a/editor_file.admin.inc
+++ b/editor_file.admin.inc
@@ -79,7 +79,11 @@ function editor_file_upload_settings_form(Editor $editor) {
     '#title' => t('Allowed file extensions'),
     '#default_value' => $extensions,
     '#description' => t('Separate extensions with a space or comma and do not include the leading dot.'),
-    '#element_validate' => [['\Drupal\file\Plugin\Field\FieldType\FileItem', 'validateExtensions']],
+    '#element_validate' => [
+      [
+        '\Drupal\file\Plugin\Field\FieldType\FileItem', 'validateExtensions',
+      ],
+    ],
     '#maxlength' => 256,
     // By making this field required, we prevent a potential security issue
     // that would allow files of any type to be uploaded.
diff --git a/src/Form/EditorFileDialog.php b/src/Form/EditorFileDialog.php
index 8692025..128716a 100644
--- a/src/Form/EditorFileDialog.php
+++ b/src/Form/EditorFileDialog.php
@@ -153,7 +153,7 @@ class EditorFileDialog extends FormBase implements BaseFormIdInterface {
     $form['attributes']['href'] = [
       '#title' => $this->t('URL'),
       '#type' => 'textfield',
-      '#default_value' => isset($file_element['href']) ? $file_element['href'] : '',
+      '#default_value' => $file_element['href'] ?? '',
       '#maxlength' => 2048,
       '#required' => TRUE,
     ];
diff --git a/src/Plugin/CKEditorPlugin/DrupalFile.php b/src/Plugin/CKEditorPlugin/DrupalFile.php
index 63d1e3b..86c4d87 100644
--- a/src/Plugin/CKEditorPlugin/DrupalFile.php
+++ b/src/Plugin/CKEditorPlugin/DrupalFile.php
@@ -67,7 +67,9 @@ class DrupalFile extends CKEditorPluginBase implements CKEditorPluginConfigurabl
     $form_state->loadInclude('editor_file', 'admin.inc');
     $form['file_upload'] = editor_file_upload_settings_form($editor);
     $form['file_upload']['#attached']['library'][] = 'editor_file/drupal.ckeditor.drupalfile.admin';
-    $form['file_upload']['#element_validate'][] = [$this, 'validateFileUploadSettings'];
+    $form['file_upload']['#element_validate'][] = [
+      $this, 'validateFileUploadSettings',
+    ];
     return $form;
   }