From 54a193aa5cdeb2aa01778a5d39db019fcf51c31d Mon Sep 17 00:00:00 2001
From: Jean-Michel Vedrine <vedrine@vedrine.org>
Date: Mon, 29 Jan 2018 10:47:07 +0100
Subject: Fix to previous commit

---
 displayformula.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/displayformula.php b/displayformula.php
index 09f4cff..9693af3 100644
--- a/displayformula.php
+++ b/displayformula.php
@@ -30,7 +30,7 @@
 require_once('../../../config.php');
 require_once("$CFG->dirroot/question/type/algebra/parser.php");
 
-global $PAGE;
+global $PAGE, $CFG;
 require_login();
 
 $p = new qtype_algebra_parser;
-- 
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