diff --git a/reference/forms/types/entity.rst b/reference/forms/types/entity.rst
index 71317b51da3..78c2b4dbf6c 100644
--- a/reference/forms/types/entity.rst
+++ b/reference/forms/types/entity.rst
@@ -53,6 +53,7 @@ the `query_builder`_ option::
 
     use App\Entity\User;
     use Doctrine\ORM\EntityRepository;
+    use Doctrine\ORM\QueryBuilder;
     use Symfony\Bridge\Doctrine\Form\Type\EntityType;
     // ...