diff --git a/mod/scorm/locallib.php b/mod/scorm/locallib.php
index 3a6f80a63db..2049e5540ce 100644
--- a/mod/scorm/locallib.php
+++ b/mod/scorm/locallib.php
@@ -237,12 +237,12 @@ function scorm_parse($scorm, $full) {
                 // Sorry - localsync disabled.
                 return;
             }
-            if ($scorm->reference !== '' and (!$full or $scorm->sha1hash !== sha1($scorm->reference))) {
+            if ($scorm->reference !== '') {
                 $fs->delete_area_files($context->id, 'mod_scorm', 'package');
                 $filerecord = array('contextid' => $context->id, 'component' => 'mod_scorm', 'filearea' => 'package',
                                     'itemid' => 0, 'filepath' => '/');
-                if ($packagefile = $fs->create_file_from_url($filerecord, $scorm->reference, array('calctimeout' => true))) {
-                    $newhash = sha1($scorm->reference);
+                if ($packagefile = $fs->create_file_from_url($filerecord, $scorm->reference, array('calctimeout' => true), true)) {
+                    $newhash = $packagefile->get_contenthash();
                 } else {
                     $newhash = null;
                 }