diff --git a/core/lib/Drupal/Component/Plugin/PluginBag.php b/core/lib/Drupal/Component/Plugin/PluginBag.php
index 656c8ce..34a960c 100644
--- a/core/lib/Drupal/Component/Plugin/PluginBag.php
+++ b/core/lib/Drupal/Component/Plugin/PluginBag.php
@@ -8,7 +8,7 @@
 namespace Drupal\Component\Plugin;
 
 /**
- * Allows lazy initialization of plugins.
+ * Defines an object which stores multiple plugin instances to allow lazy initialization.
  */
 abstract class PluginBag implements \ArrayAccess, \Iterator, \Countable {