diff --git a/system/libraries/Validation.php b/system/libraries/Validation.php
index 79ab76c..9600534 100644
--- a/system/libraries/Validation.php
+++ b/system/libraries/Validation.php
@@ -504,7 +504,7 @@
 	 */		

 	function alpha($str)

 	{

-		return ( ! preg_match("/^([-a-z])+$/i", $str)) ? FALSE : TRUE;

+		return ( ! preg_match("/^([a-z])+$/i", $str)) ? FALSE : TRUE;

 	}

 	

 	// --------------------------------------------------------------------