diff --git a/cron/cron.php b/cron/cron.php
index fb9634d8..cfbf2948 100644
--- a/cron/cron.php
+++ b/cron/cron.php
@@ -490,7 +490,7 @@ if ($config_send_invoice_reminders == 1) {
 
     // PAST DUE INVOICE Notifications
     //$invoiceAlertArray = [$config_invoice_overdue_reminders];
-    $invoiceAlertArray = [30,60,90,120,150,180,210,240,270,300,330,360,390,420,450,480,510,540,570,590,620,650,680,710,740];
+    $invoiceAlertArray = [1,30,60,90,120,150,180,210,240,270,300,330,360,390,420,450,480,510,540,570,590,620,650,680,710,740];
 
     foreach ($invoiceAlertArray as $day) {