diff --git a/inline_responsive_images.module b/inline_responsive_images.module
index 5d38b7a..ec2e5a6 100644
--- a/inline_responsive_images.module
+++ b/inline_responsive_images.module
@@ -1,6 +1,7 @@
 <?php
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\file\Entity\File;
+use Drupal\editor\Entity\Editor;
 
 /**
 * Implements hook_help().
@@ -31,7 +32,8 @@ function inline_responsive_images_help($route_name, \Drupal\Core\Routing\RouteMa
  */
 function inline_responsive_images_form_editor_image_dialog_alter(&$form, FormStateInterface $form_state) {
 
-  $filter_format = $form_state->getBuildInfo()['args'][0];
+  $editor = $form_state->getBuildInfo()['args'][0];
+  $filter_format = $editor->getFilterFormat();
   $filters = $filter_format->filters()->getAll();
 
   $image_element = $form_state->getStorage()['image_element'];