diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index 93ec8b3..25ccb4c 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -80,7 +80,7 @@
 	 * 
 	 * @return void
 	 */
-	private function _config_delimiters()
+	protected function _config_delimiters()
 	{
 		if (isset($rules['error_prefix']))
 		{