diff --git a/lib/coursecatlib.php b/lib/coursecatlib.php
index 0bf08f6a18c..12bd43c664d 100644
--- a/lib/coursecatlib.php
+++ b/lib/coursecatlib.php
@@ -563,7 +563,6 @@ class coursecat implements renderable, cacheable_object, IteratorAggregate {
      * (category id => coursecat object) sorted by sortorder
      *
      * @see coursecat::get_children()
-     * @see coursecat::get_all_parents()
      *
      * @return cacheable_object_array array of coursecat objects
      */