diff --git a/taglib/toolkit/tpropertymap.h b/taglib/toolkit/tpropertymap.h
index c6d19fef..d67eea88 100644
--- a/taglib/toolkit/tpropertymap.h
+++ b/taglib/toolkit/tpropertymap.h
@@ -58,6 +58,13 @@ namespace TagLib {
    *  - GENRE
    *  - COMMENT
    *
+   * Sort names:
+   *
+   *  - TITLESORT
+   *  - ALBUMSORT
+   *  - ARTISTSORT
+   *  - ALBUMARTISTSORT
+   *
    * Credits:
    *
    *  - COMPOSER