From d6927641105d0fa251c3e767b5c9fbce4cc7171c Mon Sep 17 00:00:00 2001
From: Hironori Kitagawa <h_kitagawa2001@yahoo.co.jp>
Date: Sat, 7 May 2016 15:35:17 +0900
Subject: [PATCH] ticket #36312

---
 src/ltj-jfont.lua | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ltj-jfont.lua b/src/ltj-jfont.lua
index febcc97..207d0e0 100644
--- a/src/ltj-jfont.lua
+++ b/src/ltj-jfont.lua
@@ -269,6 +269,7 @@ do
 		       '\\endcsname=\\relax')
 	 return
       end
+      if not f then return end
       update_jfm_cache(j, f.size)
       local ad = identifiers[fn].parameters
       local sz = metrics[j].size_cache[f.size]
-- 
2.11.0