diff --git a/Doctrine/Locking/Manager/Pessimistic.php b/Doctrine/Locking/Manager/Pessimistic.php
index 1d8e33a1b..4bcda9637 100644
--- a/Doctrine/Locking/Manager/Pessimistic.php
+++ b/Doctrine/Locking/Manager/Pessimistic.php
@@ -33,7 +33,7 @@ class Doctrine_Locking_Manager_Pessimistic
     /**
      * The datasource that is used by the locking manager
      *
-     * @var PDO object
+     * @var Doctrine_Connection object
      */
     private $_dataSource;
     /**
@@ -41,6 +41,7 @@ class Doctrine_Locking_Manager_Pessimistic
      */
     private $_lockTable = 'doctrine_lock_tracking';
 
+
     /**
      * Constructs a new locking manager object
      *