diff --git a/core/lib/Drupal/Component/Plugin/Mapper/MapperInterface.php b/core/lib/Drupal/Component/Plugin/Mapper/MapperInterface.php
index 785ca096ec27f0531b9038525ab13e4ae836e19d..983af86137394548687ae5060f54eb43c4968d51 100644
--- a/core/lib/Drupal/Component/Plugin/Mapper/MapperInterface.php
+++ b/core/lib/Drupal/Component/Plugin/Mapper/MapperInterface.php
@@ -1,7 +1,7 @@
 <?php
 /**
  * @file
- * Definition of Drupal\Component\Plugin\Mapper\MapperInterface.
+ * Contains \Drupal\Component\Plugin\Mapper\MapperInterface.
  */
 
 namespace Drupal\Component\Plugin\Mapper;
diff --git a/core/lib/Drupal/Component/Plugin/PluginBase.php b/core/lib/Drupal/Component/Plugin/PluginBase.php
index eccddc94a356b4ab674f2050a47a324671d0e98b..fb36f2a24db16890029e2c41eb8a1a489ba9adcb 100644
--- a/core/lib/Drupal/Component/Plugin/PluginBase.php
+++ b/core/lib/Drupal/Component/Plugin/PluginBase.php
@@ -1,7 +1,7 @@
 <?php
 /**
  * @file
- * Definition of Drupal\Component\Plugin\PluginBase
+ * Contains \Drupal\Component\Plugin\PluginBase
  */
 
 namespace Drupal\Component\Plugin;
diff --git a/core/lib/Drupal/Component/Plugin/PluginInspectionInterface.php b/core/lib/Drupal/Component/Plugin/PluginInspectionInterface.php
index 42eb4b9bc00645c22f59bf47ad0800ffca852719..31e5e468d71d0e46b0ac3401a47ab60bf6fc89e3 100644
--- a/core/lib/Drupal/Component/Plugin/PluginInspectionInterface.php
+++ b/core/lib/Drupal/Component/Plugin/PluginInspectionInterface.php
@@ -1,7 +1,7 @@
 <?php
 /**
  * @file
- * Definition of Drupal\Component\Plugin\PluginInspectionInterface.
+ * Contains \Drupal\Component\Plugin\PluginInspectionInterface.
  */
 
 namespace Drupal\Component\Plugin;
diff --git a/core/lib/Drupal/Component/Plugin/PluginManagerBase.php b/core/lib/Drupal/Component/Plugin/PluginManagerBase.php
index a043acccd0696ec927924fb10841ee4fb4ec7345..34a5592fa5fad20cb35054117902ac069da510c0 100644
--- a/core/lib/Drupal/Component/Plugin/PluginManagerBase.php
+++ b/core/lib/Drupal/Component/Plugin/PluginManagerBase.php
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Definition of Drupal\Component\Plugin\PluginManagerBase
+ * Contains \Drupal\Component\Plugin\PluginManagerBase
  */
 
 namespace Drupal\Component\Plugin;
diff --git a/core/lib/Drupal/Component/Plugin/PluginManagerInterface.php b/core/lib/Drupal/Component/Plugin/PluginManagerInterface.php
index a7d74a8092e197e7f7ba90786f8fc06e75e6c8e6..f1e31049bafa76b75ba19b36020abe86463fdf90 100644
--- a/core/lib/Drupal/Component/Plugin/PluginManagerInterface.php
+++ b/core/lib/Drupal/Component/Plugin/PluginManagerInterface.php
@@ -1,7 +1,7 @@
 <?php
 /**
  * @file
- * Definition of Drupal\Component\Plugin\PluginManagerInterface
+ * Contains \Drupal\Component\Plugin\PluginManagerInterface
  */
 
 namespace Drupal\Component\Plugin;