diff --git a/src/_mixin/menu.pug b/src/_mixin/menu.pug
index 037b1aa..939f6e4 100644
--- a/src/_mixin/menu.pug
+++ b/src/_mixin/menu.pug
@@ -7,7 +7,7 @@ mixin menu(o, element)
             a(href=val.url, class=val.index.url == element.url ? 'selected' : null)= val.nice_name
           - else
             span= val.nice_name
-        +menu(val, element)
+          +menu(val, element)
       - else if (val.type == 'file' && val.tags.includes('document') && !val.tags.includes('is_index'))
         li
           a(href=val.url, class=val.url == element.url ? 'selected' : null)= val.nice_name