diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php
index 59c3baf..fd224c4 100644
--- a/system/database/DB_forge.php
+++ b/system/database/DB_forge.php
@@ -229,7 +229,7 @@
 	 *
 	 * @param	string	$key
 	 * @param	bool	$primary
-	 * @return	object
+	 * @return  CI_DB_forge
 	 */
 	public function add_key($key = '', $primary = FALSE)
 	{
@@ -266,7 +266,7 @@
 	 * Add Field
 	 *
 	 * @param	array	$field
-	 * @return	object
+	 * @return	CI_DB_forge
 	 */
 	public function add_field($field = '')
 	{