Index: multistep.theme.inc
===================================================================
--- multistep.theme.inc	(revision 3729)
+++ multistep.theme.inc	(working copy)
@@ -11,7 +11,7 @@
   foreach ($variables['links']['#children'] as $key => $group) {
     extract($group);
     if (isset($url) || $next_unsubmitted_step) {
-      $content[$key] = l($label, $url, array('attributes' => array('id' => $id, 'class' => $class), 'query' => array('step' => $step)));
+      $content[$key] = l($label, url($url, array('query' => array('step' => $step), 'absolute' => true)), array('attributes' => array('id' => $id, 'class' => $class)));
     }
     else {
       $content[$key] = '<span id="'. $id .'" class="' . implode(' ', $class) . '">' . $label . '</span>';