diff --git a/module/doc/model.php b/module/doc/model.php
index 7ee02abef2..f25b659ee5 100644
--- a/module/doc/model.php
+++ b/module/doc/model.php
@@ -61,19 +61,19 @@ class docModel extends model
      * @param  string $extra
      * @param  string $appendLibs
      * @param  int    $objectID
-     * @param  string $exclude
+     * @param  string $excludeType
      *
      * @access public
      * @return array
      */
-    public function getLibs($type = '', $extra = '', $appendLibs = '', $objectID = 0, $exclude = '')
+    public function getLibs($type = '', $extra = '', $appendLibs = '', $objectID = 0, $excludeType = '')
     {
         if($type == 'all' or $type == 'includeDeleted')
         {
             $stmt = $this->dao->select('*')->from(TABLE_DOCLIB)
                 ->where('type')->ne('api')
                 ->beginIF($type == 'all')->andWhere('deleted')->eq(0)->fi()
-                ->beginIF($exclude)->andWhere('type')->notin($exclude)->fi()
+                ->beginIF($excludeType)->andWhere('type')->notin($excludeType)->fi()
                 ->andWhere('vision')->eq($this->config->vision)
                 ->orderBy('`order` asc, id_desc')
                 ->query();
diff --git a/module/tree/control.php b/module/tree/control.php
index bef5d3a982..694fb98501 100644
--- a/module/tree/control.php
+++ b/module/tree/control.php
@@ -376,10 +376,8 @@ class tree extends control
         {
             $this->view->optionMenu = $this->tree->getOptionMenu($module->root, $module->type, 0, $module->branch);
         }
-        if($type == 'doc')
-        {
-            $this->view->libs = $this->loadModel('doc')->getLibs('all', $extra = 'withObject', '', 0, 'book');
-        }
+
+        if($type == 'doc') $this->view->libs = $this->loadModel('doc')->getLibs('all', $extra = 'withObject', '', 0, 'book');
 
         $this->view->module = $module;
         $this->view->type   = $type;