diff --git a/modules/search_by_page/search_by_page.api.php b/modules/search_by_page/search_by_page.api.php
index 29a3d69..a4021c2 100644
--- a/modules/search_by_page/search_by_page.api.php
+++ b/modules/search_by_page/search_by_page.api.php
@@ -119,7 +119,9 @@ function hook_sbp_paths($environment) {
  *      the fields are. The 'title' component must be given.  The 'link'
  *      component should be omitted (it is handled by the main
  *      search_by_page module).  The search_by_page_excerpt() function may be
- *      useful in extracting a 'snippet'.
+ *      useful in extracting a 'snippet'. A module may return a 'object'
+ *      component, which e.g. can be a node object (obtained with node_load)
+ *      , a file object or a user object (obtained with user_load).
  *
  * @see hook_sbp_paths()
  */