diff --git a/core/modules/taxonomy/taxonomy.module b/core/modules/taxonomy/taxonomy.module
index 242a4c7..0397e11 100644
--- a/core/modules/taxonomy/taxonomy.module
+++ b/core/modules/taxonomy/taxonomy.module
@@ -1421,6 +1421,10 @@ function taxonomy_field_formatter_info() {
       'label' => t('Plain text'),
       'field types' => array('taxonomy_term_reference'),
     ),
+    'taxonomy_term_reference_rss_category' => array(
+      'label' => t('RSS category'),
+      'field types' => array('taxonomy_term_reference'),
+    ),
   );
 }
 
@@ -1463,6 +1467,18 @@ function taxonomy_field_formatter_view($entity_type, $entity, $field, $instance,
         );
       }
       break;
+
+    case 'taxonomy_term_reference_rss_category':
+      foreach ($items as $delta => $item) {
+        $entity->rss_elements[] = array(
+          'key' => 'category',
+          'value' => $item['tid'] != 'autocreate' ? $item['taxonomy_term']->name : $item['name'],
+          'attributes' => array(
+            'domain' => $item['tid'] != 'autocreate' ? url('taxonomy/term/' . $item['tid'], array('absolute' => TRUE)) : '',
+          ),
+        );
+      }
+      break;
   }
 
   return $element;