diff --git a/legacy/elementary/src/lib/elm_panes.h b/legacy/elementary/src/lib/elm_panes.h
index 5b68f7ce1e..f58c9fd20a 100644
--- a/legacy/elementary/src/lib/elm_panes.h
+++ b/legacy/elementary/src/lib/elm_panes.h
@@ -30,6 +30,11 @@
  * If panes are displayed vertically, left content will be displayed on
  * top.
  *
+ * Supported elm_object common APIs.
+ * @li elm_object_part_content_set
+ * @li elm_object_part_content_get
+ * @li elm_object_part_content_unset
+ *
  * Here is an example on its usage:
  * @li @ref panes_example
  */