From 2b430b0b4116ac0140ec501562ccf66ef297b86a Mon Sep 17 00:00:00 2001
From: Alex Shpak <alex-shpak@users.noreply.github.com>
Date: Tue, 28 Apr 2020 22:00:24 +0200
Subject: [PATCH] #212, Fix use of IsAncestor after hugo breaking change

---
 layouts/partials/docs/menu-filetree.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/layouts/partials/docs/menu-filetree.html b/layouts/partials/docs/menu-filetree.html
index 4233a07..fcde91e 100644
--- a/layouts/partials/docs/menu-filetree.html
+++ b/layouts/partials/docs/menu-filetree.html
@@ -9,7 +9,7 @@
 
 {{ define "book-section-children" }}{{/* (dict "Section" .Section "CurrentPage" .CurrentPage) */}}
   {{ $self := eq .CurrentPage .Section }}
-  {{ $ancestor := strings.HasPrefix .CurrentPage.RelPermalink .Section.RelPermalink }}
+  {{ $ancestor := .Section.IsAncestor .CurrentPage }}
   {{ $collapsed := .Section.Params.bookCollapseSection }}
 
   {{ if or $self $ancestor (not $collapsed) }}