diff --git a/course/format/weeks/format.php b/course/format/weeks/format.php
index cc6c1ed9d69..88a5917b93e 100644
--- a/course/format/weeks/format.php
+++ b/course/format/weeks/format.php
@@ -236,7 +236,7 @@
 
     if (!empty($sectionmenu)) {
         echo '<div align="center" class="jumpmenu">';
-        echo popup_form($CFG->wwwroot.'/course/view.php?id='.$course->id.'&', $sectionmenu,
+        echo popup_form($CFG->wwwroot.'/course/view.php?id='.$course->id.'&amp;', $sectionmenu,
                    'sectionmenu', '', get_string('jumpto'), '', '', true);
         echo '</div>';
     }