Fixed type

sami.conf.php

@@ -31,7 +31,7 @@ class Markdown_Sami_Twig_Extension extends Twig_Extension {
         $str = "";
 
         foreach ($tree as $key => $elem) {
-            $append($str, $depth, $key, self::href(self::dep($elem[1]), sprintf("#%s", $elem[1]), $elem[1])); 
+            $append($str, $depth, $key, self::href(is_string($elem[1]) ? $elem[1] : self::dep($elem), sprintf("#%s", $elem[1]), $elem[1])); 
 
             if (isset($elem[2]) && !empty($elem[2])) {
                 $last = array();