--- views/handlers/_views_handler_field_markup.inc.original	2008-12-17 16:42:42.000000000 +0100
+++ views/handlers/views_handler_field_markup.inc	2008-12-17 16:43:10.000000000 +0100
@@ -28,7 +28,7 @@ class views_handler_field_markup extends
 
   function render($values) {
     $value = $values->{$this->field_alias};
-    $format = is_numeric($this->format) ? $this->format : $values->{$this->aliases['format']};
+    $format = is_numeric($this->format) ? $this->format : $values->{$this->aliases[$this->additional_fields['format']]};
     return check_markup($value, $format, FALSE);
   }