From 92f455dc9e0902626581e8081219dc38c76dff20 Mon Sep 17 00:00:00 2001
From: David Herney <davidherney@gmail.com>
Date: Thu, 29 May 2025 03:50:42 -0500
Subject: [PATCH] MDL-85616 mod_glossary: The existence of the variable is
 controlled

---
 mod/glossary/showentry.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mod/glossary/showentry.php b/mod/glossary/showentry.php
index 63e973e7aa3..b9497fb1502 100644
--- a/mod/glossary/showentry.php
+++ b/mod/glossary/showentry.php
@@ -85,7 +85,7 @@ if (!empty($courseid)) {
     echo $OUTPUT->header();    // Needs to be something here to allow linking back to the whole glossary
 }
 
-if ($glossary) {
+if (isset($glossary)) {
     $url = new moodle_url('view.php', ['id' => $cm->id]);
     $backlink = html_writer::link($url, get_string('back'), ['class' => 'btn btn-secondary']);
     echo html_writer::tag('div', $backlink, ['class' => 'tertiary-navigation']);