diff --git a/mod/data/preset.php b/mod/data/preset.php
index 866f83ea17b..6c773f16e49 100644
--- a/mod/data/preset.php
+++ b/mod/data/preset.php
@@ -323,7 +323,7 @@ echo '<form name="uploadpreset" method="post" action="preset.php">';
 echo '<input type="hidden" name="d" value="'.$data->id.'" />';
 echo '<input type="hidden" name="action" value="importzip" />';
 echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
-echo '<input name="file" size="20" value="" id="fromfile" type="text" /><input name="coursefiles" value="'.$strchooseorupload.'" onclick="return openpopup('."'/files/index.php?id=2&choose=uploadpreset.file', 'coursefiles', 'menubar=0,location=0,scrollbars,resizable,width=750,height=500', 0".');" type="button" />';
+echo '<input name="file" size="20" value="" id="fromfile" type="text" /><input name="coursefiles" value="'.$strchooseorupload.'" onclick="return openpopup('."'/files/index.php?id=2&amp;choose=uploadpreset.file', 'coursefiles', 'menubar=0,location=0,scrollbars,resizable,width=750,height=500', 0".');" type="button" />';
 echo '<input type="submit" value="'.$strimport.'" />';
 echo '</form>';
 echo '</td></tr>';