diff --git a/examples/conditions/segments/ContactIsAttendingConditionRule.php b/examples/conditions/segments/ContactIsAttendingConditionRule.php
index 7aabc4f1..d309f416 100644
--- a/examples/conditions/segments/ContactIsAttendingConditionRule.php
+++ b/examples/conditions/segments/ContactIsAttendingConditionRule.php
@@ -49,6 +49,9 @@ public function modifyQuery(ElementQueryInterface $query): void
         /** @phpstan-ignore-next-line */
         $ids = $rsvp->attending->ids();
 
+        /**
+         * Filters contacts by IDs matching those that are attending.
+         */
         $query->andWhere([
             'id' => $ids,
         ]);