diff --git a/autoload/zencoding/lang/haml.vim b/autoload/zencoding/lang/haml.vim
index 771aaf5..2da272f 100644
--- a/autoload/zencoding/lang/haml.vim
+++ b/autoload/zencoding/lang/haml.vim
@@ -69,7 +69,7 @@ function! zencoding#lang#haml#toString(settings, current, type, inline, filters,
       endfor
     elseif len(current.child) > 0
       for child in current.child
-        let inner .= zencoding#toString(child, type, inline, filters)
+        let inner .= zencoding#toString(child, type, inline, filters, itemno)
       endfor
       let inner = substitute(inner, "\n", "\n  ", 'g')
       let inner = substitute(inner, "\n  $", "", 'g')