diff --git a/core/modules/edit/lib/Drupal/edit/Form/EditFieldForm.php b/core/modules/edit/lib/Drupal/edit/Form/EditFieldForm.php
index af07924..b4f4111 100644
--- a/core/modules/edit/lib/Drupal/edit/Form/EditFieldForm.php
+++ b/core/modules/edit/lib/Drupal/edit/Form/EditFieldForm.php
@@ -234,7 +234,7 @@ protected function simplify(array &$form, array &$form_state) {
    *   The name of the field found or NULL if not found.
    */
   protected function getChangedFieldName(ContentEntityInterface $entity) {
-    foreach ($entity->getPropertyDefinitions() as $field) {
+    foreach ($entity->getFieldDefinitions() as $field) {
       if ($field->getType() == 'changed') {
         return $field->getName();
       }