diff --git a/lib/Command/Db/Rebuild.php b/lib/Command/Db/Rebuild.php
index 834483f3f..283d35780 100644
--- a/lib/Command/Db/Rebuild.php
+++ b/lib/Command/Db/Rebuild.php
@@ -1,9 +1,9 @@
 <?php
 
 declare(strict_types=1);
-/**
- * SPDX-FileCopyrightText: 2021 Nextcloud contributors
- * SPDX-License-Identifier: AGPL-3.0-or-later
+/**
+ * SPDX-FileCopyrightText: 2021 Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 
 namespace OCA\Polls\Command\Db;
@@ -23,6 +23,12 @@ class Rebuild extends Command {
 	protected array $operationHints = [
 		'All polls tables will get checked against the current schema.',
 		'NO data migration will be executed, so make sure you have a backup of your database.',
+		'',
+		'*****************************',
+		'**    Please understand    **',
+		'*****************************',
+		'The process will also recreate all indices and foreign key constraints.',
+		'This can lead to a database performance impact on the app after the recreation is done.',
 	];
 
 	public function __construct(