diff --git a/application/Espo/Modules/Crm/Tools/MassEmail/SendingProcessor.php b/application/Espo/Modules/Crm/Tools/MassEmail/SendingProcessor.php
index 3ce19f703c..7abc4a4b8a 100644
--- a/application/Espo/Modules/Crm/Tools/MassEmail/SendingProcessor.php
+++ b/application/Espo/Modules/Crm/Tools/MassEmail/SendingProcessor.php
@@ -231,7 +231,7 @@ class SendingProcessor
     /**
      * @param iterable<CampaignTrackingUrl> $trackingUrlList
      */
-    protected function getPreparedEmail(
+    private function getPreparedEmail(
         EmailQueueItem $queueItem,
         MassEmail $massEmail,
         EmailTemplate $emailTemplate,