diff --git a/classes/task/email_certificate_task.php b/classes/task/email_certificate_task.php
index 1581ffc..f62fa67 100644
--- a/classes/task/email_certificate_task.php
+++ b/classes/task/email_certificate_task.php
@@ -158,7 +158,7 @@ class email_certificate_task extends \core\task\scheduled_task {
 
         // If there are no users to email we can return early.
         if (!$issuedusers) {
-            continue;
+            return;
         }
 
         // Create a directory to store the PDF we will be sending.