diff --git a/core/modules/content_translation/src/Plugin/migrate/source/d6/BlockTranslation.php b/core/modules/content_translation/src/Plugin/migrate/source/d6/BlockTranslation.php
index 03e30f2fb8..26587ce2f6 100644
--- a/core/modules/content_translation/src/Plugin/migrate/source/d6/BlockTranslation.php
+++ b/core/modules/content_translation/src/Plugin/migrate/source/d6/BlockTranslation.php
@@ -3,6 +3,7 @@
 namespace Drupal\content_translation\Plugin\migrate\source\d6;
 
 use Drupal\block\Plugin\migrate\source\Block;
+use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
 
 /**
  * Gets i18n block data from source database.
@@ -24,7 +25,7 @@ public function query() {
     parent::query();
     $query = $this->select('i18n_blocks', 'i18n')
       ->fields('i18n', ['ibid', 'module', 'delta', 'type', 'language'])
-      ->fields('b', ['bid', 'module', 'delta', 'theme', 'title']);
+      ->fields('b', ['bid', 'theme', 'title']);
     $query->addField('b', 'module', 'block_module');
     $query->addField('b', 'delta', 'block_delta');
     $query->innerJoin($this->blockTable, 'b', ('b.module = i18n.module AND b.delta = i18n.delta'));