diff --git a/mod/glossary/edit.php b/mod/glossary/edit.php
index a66580b1771..09eab850094 100644
--- a/mod/glossary/edit.php
+++ b/mod/glossary/edit.php
@@ -66,7 +66,7 @@ if ($id) { // if entry is specified
 $maxfiles = 99;                // TODO: add some setting
 $maxbytes = $course->maxbytes; // TODO: add some setting
 
-$definitionoptions = array('trusttext'=>true, 'subdirs'=>false, 'maxfiles'=>$maxfiles, 'maxbytes'=>$maxbytes, 'trusttext'=>true, 'context'=>$context);
+$definitionoptions = array('trusttext'=>true, 'subdirs'=>false, 'maxfiles'=>$maxfiles, 'maxbytes'=>$maxbytes, 'context'=>$context);
 $attachmentoptions = array('subdirs'=>false, 'maxfiles'=>$maxfiles, 'maxbytes'=>$maxbytes);
 
 $entry = file_prepare_standard_editor($entry, 'definition', $definitionoptions, $context, 'glossary_entry', $entry->id);