diff --git a/src/Plugin/CKEditorPlugin/MathJaxPlugin.php b/src/Plugin/CKEditorPlugin/MathJaxPlugin.php
index c97d3663c1346e9c7d908b96ff2dddfb39037cfe..c8e0eadd7e88b6c156cb51f00711d215cacbc847 100644
--- a/src/Plugin/CKEditorPlugin/MathJaxPlugin.php
+++ b/src/Plugin/CKEditorPlugin/MathJaxPlugin.php
@@ -3,7 +3,6 @@
 namespace Drupal\uw_cfg_common\Plugin\CKEditorPlugin;
 
 use Drupal\ckeditor\CKEditorPluginBase;
-use Drupal\Core\File\FileSystem;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\editor\Entity\Editor;
 use Drupal\Core\Asset\LibrariesDirectoryFileFinder;