diff --git a/common.inc.php b/common.inc.php
index fb48b94..fba4ae2 100644
--- a/common.inc.php
+++ b/common.inc.php
@@ -180,8 +180,13 @@ while($r=mysql_fetch_object($q))
 
 require_once("committee.inc.php");
 
-session_name("SFIABSESSID".ereg_replace("[^A-Za-z]","_",$config['SFIABDIRECTORY']));
-session_set_cookie_params(0,$config['SFIABDIRECTORY']);
+if($config['SFIABDIRECTORY'] == '') {
+	session_name("SFIABSESSID");
+	session_set_cookie_params(0,'/');
+} else {
+	session_name("SFIABSESSID".ereg_replace("[^A-Za-z]","_",$config['SFIABDIRECTORY']));
+	session_set_cookie_params(0,$config['SFIABDIRECTORY']);
+}
 session_start();
 
 //detect the browser first, so we know what icons to use - we store this in the config array as well