diff -u b/MultifieldViewsHandler.php b/MultifieldViewsHandler.php
--- b/MultifieldViewsHandler.php
+++ b/MultifieldViewsHandler.php
@@ -846,10 +846,10 @@
     }
  
     $multifield_items = field_get_items($entity_type, $entity, $this->definition['field_name'], $langcode);
-    array_walk($multifield_items, 'multifield_item_unserialize', $this->multifield_info['type']);
+    array_walk($multifield_items, 'multifield_item_unserialize', multifield_extract_multifield_machine_name($this->multifield_info));
     $render_array = array();
     foreach ($multifield_items as $multifield_item) {
-      $multifield = _multifield_field_item_to_entity($this->multifield_info['type'], $multifield_item, array('machine_name' => $this->multifield_info['type']));
+      $multifield = _multifield_field_item_to_entity(multifield_extract_multifield_machine_name($this->multifield_info), $multifield_item);
       $subfield_langcode = $this->field_language('multifield', $multifield);
       if (empty($render_array)) {
         $render_array = field_view_field('multifield', $multifield, $this->definition['subfield_name'], $display, $subfield_langcode);