diff --git a/database/migrations/2025_07_02_150723_create_alert_mail_rules_table.php b/database/migrations/2025_07_02_150723_create_alert_mail_rules_table.php
index 32827fd..e8b84ff 100644
--- a/database/migrations/2025_07_02_150723_create_alert_mail_rules_table.php
+++ b/database/migrations/2025_07_02_150723_create_alert_mail_rules_table.php
@@ -14,6 +14,7 @@ return new class extends Migration
         $sql = <<<'SQL'
             CREATE TABLE alert_mail_rules (
                 id                                  BIGINT GENERATED always AS IDENTITY PRIMARY KEY,
+                plant                               BIGINT NOT NULL DEFAULT (0),
 
                 module                              TEXT NOT NULL,
                 rule_name                           TEXT NOT NULL,