diff --git includes/database/prefetch.inc includes/database/prefetch.inc
index d47bf8f..654e861 100644
--- includes/database/prefetch.inc
+++ includes/database/prefetch.inc
@@ -123,6 +123,7 @@ class DatabaseStatementPrefetch implements Iterator, DatabaseStatementInterface
     $this->dbh = $connection;
     $this->queryString = $query;
     $this->driverOptions = $driver_options;
+    return new NoRewindIterator($this);
   }
 
   /**