diff --git a/install/sqls/00012-support-better-greetings.sql b/install/sqls/00012-support-better-greetings.sql
index db41733f..875be9c9 100644
--- a/install/sqls/00012-support-better-greetings.sql
+++ b/install/sqls/00012-support-better-greetings.sql
@@ -1 +1,3 @@
+--- if you haven't used helpdesk before nov 25, 2021 - you will not need it.
+
 UPDATE `tickets_comments` SET `text`=REGEXP_REPLACE(`text`, "(?:Здравствуйте, [^!]*!<br><\/br>|<br><\/br>С уважением,<br\/> Команда поддержки OpenVK.)", "") WHERE 1=1;