diff --git a/system/helpers/security_helper.php b/system/helpers/security_helper.php
index 1f0a629..654cfd1 100644
--- a/system/helpers/security_helper.php
+++ b/system/helpers/security_helper.php
@@ -40,7 +40,7 @@
 	function xss_clean($str, $is_image = FALSE)
 	{
 		$CI =& get_instance();
-		return $CI->input->xss_clean($str, $is_image);
+		return $CI->security->xss_clean($str, $is_image);
 	}
 }
 
@@ -56,7 +56,7 @@
 {	
 	function dohash($str, $type = 'sha1')
 	{
-		return $this->do_hash($str, $type);
+		return do_hash($str, $type);
 	}
 }