diff --git a/system/helpers/security_helper.php b/system/helpers/security_helper.php
index 9cc70aa..8fb53e7 100644
--- a/system/helpers/security_helper.php
+++ b/system/helpers/security_helper.php
@@ -49,13 +49,29 @@
 /**
  * Hash encode a string
  *
+ * This is simply an alias for do_hash()
+ * dohash() is now deprecated
+ */
+if ( ! function_exists('dohash'))
+{	
+	function dohash($str, $type = 'sha1')
+	{
+		return $this->do_hash($str, $type);
+	}
+}
+
+// --------------------------------------------------------------------
+
+/**
+ * Hash encode a string
+ *
  * @access	public
  * @param	string
  * @return	string
  */	
-if ( ! function_exists('dohash'))
+if ( ! function_exists('do_hash'))
 {	
-	function dohash($str, $type = 'sha1')
+	function do_hash($str, $type = 'sha1')
 	{
 		if ($type == 'sha1')
 		{