diff --git a/modules/taxonomy/taxonomy.module b/modules/taxonomy/taxonomy.module
index dc2847d..3e732f0 100644
--- a/modules/taxonomy/taxonomy.module
+++ b/modules/taxonomy/taxonomy.module
@@ -504,6 +504,8 @@ function taxonomy_taxonomy_vocabulary_update($vocabulary) {
  *   A vocabulary object.
  * @param $changed_term
  *   An array of the term structure that was updated.
+ * @return
+ *	  An integer that represents the level of the $vocabulary's hierarchy. 
  */
 function taxonomy_check_vocabulary_hierarchy($vocabulary, $changed_term) {
   $tree = taxonomy_get_tree($vocabulary->vid);