diff --git a/mod/assignment/backup/moodle1/lib.php b/mod/assignment/backup/moodle1/lib.php
index 9ddc169797d..3eadccddb0c 100644
--- a/mod/assignment/backup/moodle1/lib.php
+++ b/mod/assignment/backup/moodle1/lib.php
@@ -78,6 +78,8 @@ class moodle1_mod_assignment_handler extends moodle1_mod_handler {
      * data available
      */
     public function process_assignment($data) {
+        global $CFG;
+	
         // get the course module id and context id
         $instanceid     = $data['id'];
         $cminfo         = $this->get_cminfo($instanceid);
@@ -95,6 +97,12 @@ class moodle1_mod_assignment_handler extends moodle1_mod_handler {
         $this->fileman->itemid   = 0;
         $data['intro'] = moodle1_converter::migrate_referenced_files($data['intro'], $this->fileman);
 
+        // convert the introformat if necessary
+        if ($CFG->texteditors !== 'textarea') {
+            $data['intro'] = text_to_html($data['intro'], false, false, true);
+            $data['introformat'] = FORMAT_HTML;
+        }
+
         // start writing assignment.xml
         $this->open_xml_writer("activities/assignment_{$this->moduleid}/assignment.xml");
         $this->xmlwriter->begin_tag('activity', array('id' => $instanceid, 'moduleid' => $this->moduleid,
@@ -243,4 +251,4 @@ abstract class moodle1_assignment_subplugin_handler extends moodle1_submod_handl
  * This class handles subplugins that do not exist or that are not supported
  */
 class moodle1_assignment_unsupported_subplugin_handler extends moodle1_assignment_subplugin_handler {
-}
\ No newline at end of file
+}