diff --git a/src/Plugin/views/query/SearchApiQuery.php b/src/Plugin/views/query/SearchApiQuery.php
index dc21616..e1826da 100644
--- a/src/Plugin/views/query/SearchApiQuery.php
+++ b/src/Plugin/views/query/SearchApiQuery.php
@@ -1009,6 +1009,7 @@ class SearchApiQuery extends QueryPluginBase {
    * concept of "tables", this method implementation does nothing. If you are
    * writing Search API-specific Views code, there is therefore no reason at all
    * to call this method.
+   * See https://www.drupal.org/node/2484565 for more information.
    *
    * @return string
    *   An empty string.