diff --git a/autoload/vimwiki/lst.vim b/autoload/vimwiki/lst.vim
index 201a658..edac0e9 100644
--- a/autoload/vimwiki/lst.vim
+++ b/autoload/vimwiki/lst.vim
@@ -1689,7 +1689,9 @@ function! vimwiki#lst#fold_level(lnum)
     if child_item.type != 0
       return 'a1'
     elseif next_item.type == 0
-      return 's1'
+        let c_indent = indent(a:lnum) / &shiftwidth
+        let n_indent = indent(a:lnum+1) / &shiftwidth
+        return 's' . (c_indent - n_indent)
     endif
   endif
   return '='