diff --git a/search/documents/glossary_document.php b/search/documents/glossary_document.php
index 46481cdc0b2..aa713765128 100644
--- a/search/documents/glossary_document.php
+++ b/search/documents/glossary_document.php
@@ -20,7 +20,7 @@
 /**
 * includes and requires
 */
-require_once("$CFG->dirroot/search/documents/document.php");
+require_once($CFG->dirroot.'/search/documents/document.php');
 
 /**
 * a class for representing searchable information