diff --git a/core/includes/Drupal/Database/DatabaseSchema.php b/core/includes/Drupal/Database/DatabaseSchema.php
index 70f5f6ccfe77cea506d033398f824ec062057b87..6014af7b06312ba800e7d41d5d3de869605f8f04 100644
--- a/core/includes/Drupal/Database/DatabaseSchema.php
+++ b/core/includes/Drupal/Database/DatabaseSchema.php
@@ -2,6 +2,8 @@
 
 namespace Drupal\Database;
 
+use Drupal\Database\DatabaseSchemaObjectExistsException;
+use Drupal\Database\Query\DatabaseCondition;
 use Drupal\Database\Query\PlaceholderInterface;
 
 /**
diff --git a/core/includes/Drupal/Database/Driver/mysql/DatabaseSchema.php b/core/includes/Drupal/Database/Driver/mysql/DatabaseSchema.php
index dde9e6bcd58bf3da6f67f4f8a3031df98c052c08..9826971dd6a182a065fe6875cc31fcf584e32106 100644
--- a/core/includes/Drupal/Database/Driver/mysql/DatabaseSchema.php
+++ b/core/includes/Drupal/Database/Driver/mysql/DatabaseSchema.php
@@ -2,6 +2,10 @@
 
 namespace Drupal\Database\Driver\mysql;
 
+use Drupal\Database\Database;
+use Drupal\Database\Query\DatabaseCondition;
+use Drupal\Database\DatabaseSchemaObjectExistsException;
+use Drupal\Database\DatabaseSchemaObjectDoesNotExistException;
 use Drupal\Database\DatabaseSchema as DatabaseDatabaseSchema;
 
 use Exception;