diff --git a/core/modules/migrate/tests/src/Unit/process/MigrateProcessTestCase.php b/core/modules/migrate/tests/src/Unit/process/MigrateProcessTestCase.php
index 1932433330f3c7ceda3af90357139e8b8fa0c939..cff1ee7359d0ba3c479fa3a5cc77c0c627598054 100644
--- a/core/modules/migrate/tests/src/Unit/process/MigrateProcessTestCase.php
+++ b/core/modules/migrate/tests/src/Unit/process/MigrateProcessTestCase.php
@@ -12,7 +12,7 @@ abstract class MigrateProcessTestCase extends MigrateTestCase {
   protected $plugin;
 
   /**
-   * @var \Drupal\migrate\Row
+   * @var \Drupal\migrate\Row|\PHPUnit\Framework\MockObject\MockObject
    */
   protected $row;