diff --git a/modules/opd_daily_emails/src/Action/AddRandomCtaToDailyEmail.php b/modules/opd_daily_emails/src/Action/AddRandomCtaToDailyEmail.php
index 36caeb86b..ce829a165 100644
--- a/modules/opd_daily_emails/src/Action/AddRandomCtaToDailyEmail.php
+++ b/modules/opd_daily_emails/src/Action/AddRandomCtaToDailyEmail.php
@@ -49,6 +49,7 @@ readonly final class AddRandomCtaToDailyEmail {
       return FALSE;
     }
 
+    // TODO: only check this if the body has a value, because it could be empty.
     $body = $email->get('body')->value;
     assert(is_string($body));