diff --git a/core/lib/Drupal/Core/Gettext/PoDatabaseWriter.php b/core/lib/Drupal/Core/Gettext/PoDatabaseWriter.php
index 8ec9b1d..13271bb 100644
--- a/core/lib/Drupal/Core/Gettext/PoDatabaseWriter.php
+++ b/core/lib/Drupal/Core/Gettext/PoDatabaseWriter.php
@@ -2,7 +2,6 @@
 
 namespace Drupal\Core\Gettext;
 
-use Drupal\Core\Gettext\POWriter;
 use Drupal\Core\Gettext\PoHeader;
 use Drupal\Core\Gettext\PoItem;
 
diff --git a/core/lib/Drupal/Core/Gettext/PoFileWriter.php b/core/lib/Drupal/Core/Gettext/PoFileWriter.php
index 779a24f..e5ccc30 100644
--- a/core/lib/Drupal/Core/Gettext/PoFileWriter.php
+++ b/core/lib/Drupal/Core/Gettext/PoFileWriter.php
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Definition of Drupal\Core\Gettext\PoWriter.
+ * Definition of Drupal\Core\Gettext\PoFileWriter.
  */
 
 namespace Drupal\Core\Gettext;
diff --git a/core/lib/Drupal/Core/Gettext/PoMemoryWriter.php b/core/lib/Drupal/Core/Gettext/PoMemoryWriter.php
index 75efbe6..1989ae4 100644
--- a/core/lib/Drupal/Core/Gettext/PoMemoryWriter.php
+++ b/core/lib/Drupal/Core/Gettext/PoMemoryWriter.php
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Definition of Drupal\Core\Gettext\PoWriter.
+ * Definition of Drupal\Core\Gettext\PoMemoryWriter.
  */
 
 namespace Drupal\Core\Gettext;
diff --git a/core/lib/Drupal/Core/Gettext/PoWriterInterface.php b/core/lib/Drupal/Core/Gettext/PoWriterInterface.php
index 9d2d99f..424a138 100644
--- a/core/lib/Drupal/Core/Gettext/PoWriterInterface.php
+++ b/core/lib/Drupal/Core/Gettext/PoWriterInterface.php
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Definition of Drupal\Core\Gettext\PoWriter.
+ * Definition of Drupal\Core\Gettext\PoWriterInterface.
  */
 
 namespace Drupal\Core\Gettext;