diff --git a/doc/www/router.php b/doc/www/router.php
index fa4e4cba..0a37da66 100644
--- a/doc/www/router.php
+++ b/doc/www/router.php
@@ -17,7 +17,7 @@ if (!$uri) {
       $lang=$l;
     }
   }
-  header("Location: /".$lang);
+  header("Location: /".$lang."/");
   exit();
 }