diff -u b/core/modules/migrate/src/MigrateExecutable.php b/core/modules/migrate/src/MigrateExecutable.php
--- b/core/modules/migrate/src/MigrateExecutable.php
+++ b/core/modules/migrate/src/MigrateExecutable.php
@@ -333,10 +333,10 @@
         $map_row = $id_map->getRowByDestination($destination_key);
         if ($map_row['rollback_action'] == MigrateIdMapInterface::ROLLBACK_DELETE) {
           $this->getEventDispatcher()
-               ->dispatch(MigrateEvents::PRE_ROW_DELETE, new MigrateRowDeleteEvent($this->migration, $destination_key));
+            ->dispatch(MigrateEvents::PRE_ROW_DELETE, new MigrateRowDeleteEvent($this->migration, $destination_key));
           $destination->rollback($destination_key);
           $this->getEventDispatcher()
-               ->dispatch(MigrateEvents::POST_ROW_DELETE, new MigrateRowDeleteEvent($this->migration, $destination_key));
+            ->dispatch(MigrateEvents::POST_ROW_DELETE, new MigrateRowDeleteEvent($this->migration, $destination_key));
         }
         // We're now done with this row, so remove it from the map.
         $id_map->deleteDestination($destination_key);