diff --git a/core/core.api.php b/core/core.api.php
index d86cafb2e6..9f2f7f7ece 100644
--- a/core/core.api.php
+++ b/core/core.api.php
@@ -609,12 +609,12 @@
  * For cache bins that are stored in the database, the number of rows is limited
  * to 5000 by default. This can be changed for all database cache bins:
  * @code
- *  $settings['database_cache_max_rows']['default'] = 50000;
+ * $settings['database_cache_max_rows']['default'] = 50000;
  * @endcode
  *
  * Or per bin (in this case we all infinite entries):
  * @code
- *  $settings['database_cache_max_rows']['bins']['dynamic_page_cache'] = -1;
+ * $settings['database_cache_max_rows']['bins']['dynamic_page_cache'] = -1;
  * @endcode
  *
  * For monitoring reasons it might be useful to figure out the amount of data
diff --git a/core/lib/Drupal/Core/Cache/DatabaseBackend.php b/core/lib/Drupal/Core/Cache/DatabaseBackend.php
index 6b99a14ec5..c6e4a11295 100644
--- a/core/lib/Drupal/Core/Cache/DatabaseBackend.php
+++ b/core/lib/Drupal/Core/Cache/DatabaseBackend.php
@@ -27,7 +27,7 @@ class DatabaseBackend implements CacheBackendInterface {
   const DEFAULT_MAX_ROWS = 5000;
 
   /**
-   * -1 means "no maximum".
+   * -1 means infinite allows numbers of rows for the cache backend.
    */
   const MAXIMUM_NONE = -1;