diff --git a/mod/assign/feedback/editpdf/classes/page_editor.php b/mod/assign/feedback/editpdf/classes/page_editor.php
index ace040325a0..c20d709b90d 100644
--- a/mod/assign/feedback/editpdf/classes/page_editor.php
+++ b/mod/assign/feedback/editpdf/classes/page_editor.php
@@ -159,7 +159,7 @@ class page_editor {
     public static function set_annotations($gradeid, $pageno, $annotations) {
         global $DB;
 
-        $DB->delete_records('assignfeedback_editpdf_annot', array('gradeid'=>$gradeid, 'pageno'=>$pageno));
+        $DB->delete_records('assignfeedback_editpdf_annot', array('gradeid' => $gradeid, 'pageno' => $pageno, 'draft' => 1));
         $added = 0;
         foreach ($annotations as $record) {
             // Force these.