diff --git a/migrate_example/src/Plugin/migrate/source/BeerComment.php b/migrate_example/src/Plugin/migrate/source/BeerComment.php
index 3c2c15a1f25a228ce90866bbe73121b31c073ce8..4de9515c2fe34dfe967b55c06b038a71dfbf5e50 100644
--- a/migrate_example/src/Plugin/migrate/source/BeerComment.php
+++ b/migrate_example/src/Plugin/migrate/source/BeerComment.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\migrate_example\Plugin\migrate\source;
 
+use Drupal\migrate\Plugin\migrate\source\SqlBase;
+
 /**
  * Drupal 6 comment source from database.
  *
@@ -14,7 +16,7 @@ namespace Drupal\migrate_example\Plugin\migrate\source;
  *   id = "beer_comment"
  * )
  */
-class BeerComment extends MigrateExampleSqlBase {
+class BeerComment extends SqlBase {
 
   /**
    * {@inheritdoc}
diff --git a/migrate_example/src/Plugin/migrate/source/BeerNode.php b/migrate_example/src/Plugin/migrate/source/BeerNode.php
index 5ca7b7919c88e5bd35f312fb544de4762a9ddb6d..15e24f84d785ca9ee48820a25f78ae72ef6c495b 100644
--- a/migrate_example/src/Plugin/migrate/source/BeerNode.php
+++ b/migrate_example/src/Plugin/migrate/source/BeerNode.php
@@ -7,6 +7,7 @@
 
 namespace Drupal\migrate_example\Plugin\migrate\source;
 
+use Drupal\migrate\Plugin\migrate\source\SqlBase;
 use Drupal\migrate\Row;
 
 /**
@@ -16,7 +17,7 @@ use Drupal\migrate\Row;
  *   id = "beer_node"
  * )
  */
-class BeerNode extends MigrateExampleSqlBase {
+class BeerNode extends SqlBase {
 
   /**
    * {@inheritdoc}
diff --git a/migrate_example/src/Plugin/migrate/source/BeerTerm.php b/migrate_example/src/Plugin/migrate/source/BeerTerm.php
index e68763c5f3e5c3ce01c13c8f8df3a428abc93a35..410a3dbbf530990a1b19e00209ecf5e77a23adac 100644
--- a/migrate_example/src/Plugin/migrate/source/BeerTerm.php
+++ b/migrate_example/src/Plugin/migrate/source/BeerTerm.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\migrate_example\Plugin\migrate\source;
 
+use Drupal\migrate\Plugin\migrate\source\SqlBase;
+
 /**
  * Drupal 6 user source from database.
  *
@@ -14,7 +16,7 @@ namespace Drupal\migrate_example\Plugin\migrate\source;
  *   id = "beer_term"
  * )
  */
-class BeerTerm extends MigrateExampleSqlBase {
+class BeerTerm extends SqlBase {
 
   /**
    * {@inheritdoc}
diff --git a/migrate_example/src/Plugin/migrate/source/BeerUser.php b/migrate_example/src/Plugin/migrate/source/BeerUser.php
index 572e0d7f1a52e6f4a632ecbf5bc9415fa5a02c58..6fdbceb073889b4e65a1439e76f8aac39a59a87d 100644
--- a/migrate_example/src/Plugin/migrate/source/BeerUser.php
+++ b/migrate_example/src/Plugin/migrate/source/BeerUser.php
@@ -7,6 +7,7 @@
 
 namespace Drupal\migrate_example\Plugin\migrate\source;
 
+use Drupal\migrate\Plugin\migrate\source\SqlBase;
 use Drupal\migrate\Row;
 
 /**
@@ -16,7 +17,7 @@ use Drupal\migrate\Row;
  *   id = "beer_user"
  * )
  */
-class BeerUser extends MigrateExampleSqlBase {
+class BeerUser extends SqlBase {
 
   /**
    * {@inheritdoc}
diff --git a/migrate_example/src/Plugin/migrate/source/MigrateExampleSqlBase.php b/migrate_example/src/Plugin/migrate/source/MigrateExampleSqlBase.php
deleted file mode 100644
index d7075c9139b92649de75c6c9785ee26c43fdbd9c..0000000000000000000000000000000000000000
--- a/migrate_example/src/Plugin/migrate/source/MigrateExampleSqlBase.php
+++ /dev/null
@@ -1,33 +0,0 @@
-<?php
-
-/**
- * @file
- * Contains \Drupal\migrate_example\Plugin\migrate\source\MigrateExampleSqlBase.
- */
-
-namespace Drupal\migrate_example\Plugin\migrate\source;
-
-use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
-use Drupal\migrate\Entity\MigrationInterface;
-use Drupal\migrate\Plugin\migrate\source\SqlBase;
-use Symfony\Component\DependencyInjection\ContainerInterface;
-
-/**
- * A base source class for beer tables.
- */
-abstract class MigrateExampleSqlBase extends SqlBase implements ContainerFactoryPluginInterface {
-
-  /**
-   * {@inheritdoc}
-   */
-  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration = NULL) {
-    return new static(
-      $configuration,
-      $plugin_id,
-      $plugin_definition,
-      $migration,
-      $container->get('state')
-    );
-  }
-
-}