diff --git a/modules/blogapi/blogapi.module b/modules/blogapi/blogapi.module
index a947dbfecd5154140ee9060f859329e73dbe4229..1ad44a19d316db123d836ff521b836426038b70e 100644
--- a/modules/blogapi/blogapi.module
+++ b/modules/blogapi/blogapi.module
@@ -499,7 +499,7 @@ function blogapi_metaweblog_get_category_list($blogid, $username, $password) {
   $categories = array();
   if ($vocabularies) {
     foreach ($vocabularies as $vocabulary) {
-      $terms = module_invoke('taxonomy', 'get_tree', $vocabulary->vid, 0, -1);
+      $terms = module_invoke('taxonomy', 'get_tree', $vocabulary->vid);
       foreach ($terms as $term) {
         $term_name = $term->name;
         foreach (module_invoke('taxonomy', 'get_parents', $term->tid, 'tid') as $parent) {
diff --git a/modules/taxonomy/taxonomy.module b/modules/taxonomy/taxonomy.module
index eaddef26d32637cfd50313c29dc23c9a1b29f9ff..575e4dc17b56f1000a204a143510f8cf8d5c0c0a 100644
--- a/modules/taxonomy/taxonomy.module
+++ b/modules/taxonomy/taxonomy.module
@@ -850,18 +850,18 @@ function taxonomy_get_children($tid, $vid = 0, $key = 'tid') {
  *   The term ID under which to generate the tree. If 0, generate the tree
  *   for the entire vocabulary.
  *
- * @param $depth
- *   Internal use only.
- *
  * @param $max_depth
  *   The number of levels of the tree to return. Leave NULL to return all levels.
  *
+ * @param $depth
+ *   Internal use only.
+ *
  * @return
  *   An array of all term objects in the tree. Each term object is extended
  *   to have "depth" and "parents" attributes in addition to its normal ones.
  *   Results are statically cached.
  */
-function taxonomy_get_tree($vid, $parent = 0, $depth = -1, $max_depth = NULL) {
+function taxonomy_get_tree($vid, $parent = 0, $max_depth = NULL, $depth = -1) {
   static $children, $parents, $terms;
 
   $depth++;
@@ -892,7 +892,7 @@ function taxonomy_get_tree($vid, $parent = 0, $depth = -1, $max_depth = NULL) {
         $tree[] = $term;
 
         if (!empty($children[$vid][$child])) {
-          $tree = array_merge($tree, taxonomy_get_tree($vid, $child, $depth, $max_depth));
+          $tree = array_merge($tree, taxonomy_get_tree($vid, $child, $max_depth, $depth));
         }
       }
     }
@@ -1279,7 +1279,7 @@ function taxonomy_select_nodes($tids = array(), $operator = 'or', $depth = 0, $p
     }
     foreach ($tids as $index => $tid) {
       $term = taxonomy_get_term_data($tid);
-      $tree = taxonomy_get_tree($term->vid, $tid, -1, $depth);
+      $tree = taxonomy_get_tree($term->vid, $tid, $depth);
       $descendant_tids[] = array_merge(array($tid), array_map('_taxonomy_get_tid_from_term', $tree));
     }