diff --git a/core/includes/database.inc b/core/includes/database.inc
index 6d5318b..5cfacd4 100644
--- a/core/includes/database.inc
+++ b/core/includes/database.inc
@@ -321,6 +321,8 @@ function db_query_range($query, $from, $count, array $args = array(), array $opt
  *   The name of the temporary table.
  *
  * @see \Drupal\Core\Database\Connection::defaultOptions()
+ *
+ * @deprecated in Drupal 8.0.x, will be removed before 8.1.0.
  */
 function db_query_temporary($query, array $args = array(), array $options = array()) {
   if (empty($options['target'])) {