diff --git a/core/modules/system/system.api.php b/core/modules/system/system.api.php
index 9cf5cf4..4217855 100644
--- a/core/modules/system/system.api.php
+++ b/core/modules/system/system.api.php
@@ -162,12 +162,12 @@ function hook_data_type_info_alter(&$data_types) {
  *   again an associative array. Possible keys are:
  *   - 'worker callback': A PHP callable to call. It will be called
  *     with one argument, the item created via
- *     Drupal\Core\Queue\QueueInterface::createItem().
+ *     \Drupal\Core\Queue\QueueInterface::createItem().
  *   - 'cron': (optional) An associative array containing the optional key:
  *     - 'time': (optional) How much time Drupal cron should spend on calling
  *       this worker in seconds. Defaults to 15.
- *     If the cron key is not defined, the queue will not be processed by cron,
- *     and must be processed by other means.
+ *   If the cron key is not defined, the queue will not be processed by cron,
+ *   and must be processed by other means.
  *
  * @see hook_cron()
  * @see hook_queue_info_alter()