From 7c4a916d59ea8b3d31b91b26a7c7270782ae8f64 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 28 Jan 2016 21:14:30 +0530
Subject: [PATCH] Fix #1539120 [HTMLZ to PDF
 crash](https://bugs.launchpad.net/calibre/+bug/1539120)

---
 src/calibre/ebooks/pdf/render/links.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/ebooks/pdf/render/links.py b/src/calibre/ebooks/pdf/render/links.py
index 902dd74b4a..e360f2387b 100644
--- a/src/calibre/ebooks/pdf/render/links.py
+++ b/src/calibre/ebooks/pdf/render/links.py
@@ -16,7 +16,7 @@ from calibre.ebooks.pdf.render.common import Array, Name, Dictionary, String, UT
 class Destination(Array):
 
     def __init__(self, start_page, pos, get_pageref):
-        pnum = start_page + pos['column']
+        pnum = start_page + max(0, pos['column'])
         try:
             pref = get_pageref(pnum)
         except IndexError: