diff --git a/src/wp-includes/cron.php b/src/wp-includes/cron.php
index 4912d5f5035c8..b2182450efc83 100644
--- a/src/wp-includes/cron.php
+++ b/src/wp-includes/cron.php
@@ -206,7 +206,7 @@ function wp_schedule_single_event( $timestamp, $hook, $args = array(), $wp_error
  * The action will trigger when someone visits your WordPress site if the scheduled
  * time has passed.
  *
- * Valid values for the recurrence are 'hourly', 'daily', and 'twicedaily'. These can
+ * Valid values for the recurrence are 'hourly', 'daily', 'twicedaily', and 'weekly'. These can
  * be extended using the {@see 'cron_schedules'} filter in wp_get_schedules().
  *
  * Use wp_next_scheduled() to prevent duplicate events.