=== modified file 'modules/rdf/rdf.module'
--- modules/rdf/rdf.module	2009-09-05 13:03:46 +0000
+++ modules/rdf/rdf.module	2009-09-05 13:19:57 +0000
@@ -166,7 +166,7 @@
 
   // The title is only displayed on teaser mode.
   $variables['title_raw'] = $variables['title'];
-  $variables['title'] = !$variables['page'] ? '<span ' . drupal_attributes(array('property' => implode($variables['node']->rdf_mapping['title']))) . '>' . $variables['title_raw'] . '</span>' : '';
+  $variables['title'] = !$variables['page'] ? '<span ' . drupal_attributes(array('property' => $variables['node']->rdf_mapping['title']['property'][0])) . '>' . $variables['title_raw'] . '</span>' : '';
 }
 
 /**