diff --git a/jqueryui_theme.drush.inc b/jqueryui_theme.drush.inc
index 6886e37..4e72bf9 100644
--- a/jqueryui_theme.drush.inc
+++ b/jqueryui_theme.drush.inc
@@ -48,9 +48,14 @@ function jqueryui_theme_drush_command() {
   );
   
   $items['jqueryui-delete'] = array(
-    'description' => dt('Delete some jQuery UI theme passed as arguments'),
+    'description' => dt('Delete some jQuery UI theme passed as arguments. You can used "all" argument to delete all jQuery UI theme'),
     'arguments' => array(
       'machine_name' => dt('machine name of jQuery UI themes'),
+      'all' => dt('Delete all jQuery UI themes'),
+    ),
+    'examples' => array(
+      'jqueryui-delete <machine_name> <machine_name>' => dt('Delete jquery UI theme by machine name'),
+      'jqueryui-delete all' => dt('Delete all jquery UI theme installed'),
     ),
     'aliases' => array('jdel'),
   );