diff --git a/common.inc.php b/common.inc.php
index 25d982d..8475528 100644
--- a/common.inc.php
+++ b/common.inc.php
@@ -230,7 +230,7 @@ if($config['SFIABDIRECTORY'] == '') {
 	session_name("SFIABSESSID");
 	session_set_cookie_params(0,'/');
 } else {
-	session_name("SFIABSESSID".ereg_replace("[^A-Za-z]","_",$config['SFIABDIRECTORY']));
+	session_name("SFIABSESSID".preg_replace("/[^A-Za-z]/","_",$config['SFIABDIRECTORY']));
 	session_set_cookie_params(0,$config['SFIABDIRECTORY']);
 }
 session_start();