diff --git a/public_html/cron.daily.php b/public_html/cron.daily.php
index 586a608..3cfc69c 100644
--- a/public_html/cron.daily.php
+++ b/public_html/cron.daily.php
@@ -34,7 +34,7 @@ Currency::UpdateRates();
 
 try
 {
-	$sSubscriptions = Subscription::CreateFromQuery("SELECT * FROM subscriptions WHERE `Confirmed` = 1 AND `Active` = 1 AND `LastEmail` IS NULL OR `LastEmail` < DATE_SUB(NOW(), INTERVAL 1 MONTH)");
+	$sSubscriptions = Subscription::CreateFromQuery("SELECT * FROM subscriptions WHERE `Confirmed` = 1 AND `Active` = 1 AND (`LastEmail` IS NULL OR `LastEmail` < DATE_SUB(NOW(), INTERVAL 1 MONTH))");
 }
 catch (NotFoundException $e)
 {