diff --git a/core/modules/shortcut/shortcut.module b/core/modules/shortcut/shortcut.module
index 066afcc..aebf7fc 100644
--- a/core/modules/shortcut/shortcut.module
+++ b/core/modules/shortcut/shortcut.module
@@ -438,3 +438,14 @@ function shortcut_themes_installed($theme_list) {
     }
   }
 }
+
+/**
+ * Implements hook_theme().
+ */
+function shortcut_theme() {
+  return [
+    'shortcut' => [
+      'base hook' => 'container',
+    ],
+  ];
+}