diff --git a/core/modules/views/src/Plugin/views/style/DefaultSummary.php b/core/modules/views/src/Plugin/views/style/DefaultSummary.php
index f81c9a1..c4c7af5 100644
--- a/core/modules/views/src/Plugin/views/style/DefaultSummary.php
+++ b/core/modules/views/src/Plugin/views/style/DefaultSummary.php
@@ -19,7 +19,7 @@
  *   id = "default_summary",
  *   title = @Translation("List"),
  *   help = @Translation("Displays the default summary as a list."),
- *   theme = "views_view_summary",
+ *   theme = "item_list__views_view_summary'",
  *   display_types = {"summary"}
  * )
  */
diff --git a/core/modules/views/views.module b/core/modules/views/views.module
index 6fc41fa..f09ed3e 100644
--- a/core/modules/views/views.module
+++ b/core/modules/views/views.module
@@ -288,6 +288,13 @@ function views_theme_suggestions_container_alter(array &$suggestions, array $var
 }
 
 /**
+ * Implements hook_theme_suggestions_HOOK().
+ */
+function views__theme_suggestions_item_list__views_view_summary(array $variables) {
+  return 'item_list';
+}
+
+/**
  * Implements hook_element_info_alter().
  *
  * @see views_page_display_pre_render()
diff --git a/core/modules/views/views.theme.inc b/core/modules/views/views.theme.inc
index 236b6d0..b9b75b1 100644
--- a/core/modules/views/views.theme.inc
+++ b/core/modules/views/views.theme.inc
@@ -289,7 +289,7 @@ function template_preprocess_views_view_field(&$variables) {
  *   - view: A ViewExecutable object.
  *   - rows: The raw row data.
  */
-function template_preprocess_views_view_summary(&$variables) {
+function template_preprocess_item_list__views_view_summary(&$variables) {
   /** @var \Drupal\views\ViewExecutable $view */
   $view = $variables['view'];
   $argument = $view->argument[$view->build_info['summary_level']];