diff --git a/core/modules/editor/editor.module b/core/modules/editor/editor.module
index 81dd624..b12ca6c 100644
--- a/core/modules/editor/editor.module
+++ b/core/modules/editor/editor.module
@@ -445,6 +445,10 @@ function editor_entity_update(EntityInterface $entity) {
  * Implements hook_entity_delete().
  */
 function editor_entity_delete(EntityInterface $entity) {
+  // Only act on content entities.
+  if (!($entity instanceof ContentEntityInterface)) {
+    return;
+  }
   $referenced_files_by_field = _editor_get_file_uuids_by_field($entity);
   foreach ($referenced_files_by_field as $field => $uuids) {
     _editor_delete_file_usage($uuids, $entity, 0);
@@ -455,6 +459,10 @@ function editor_entity_delete(EntityInterface $entity) {
  * Implements hook_entity_revision_delete().
  */
 function editor_entity_revision_delete(EntityInterface $entity) {
+  // Only act on content entities.
+  if (!($entity instanceof ContentEntityInterface)) {
+    return;
+  }
   $referenced_files_by_field = _editor_get_file_uuids_by_field($entity);
   foreach ($referenced_files_by_field as $field => $uuids) {
     _editor_delete_file_usage($uuids, $entity, 1);