diff --git a/_config.php b/_config.php
index 8c64bd0..4c3d5af 100644
--- a/_config.php
+++ b/_config.php
@@ -1,5 +1,5 @@
 <?php
 
-if(isset($_REQUEST['PHPSESSID'])) {
-	Session::start($_REQUEST['PHPSESSID']);
-}
\ No newline at end of file
+if ($_SERVER['HTTP_USER_AGENT'] == 'Shockwave Flash' and isset($_POST['PHPSESSID'])) {
+	Session::start($_POST['PHPSESSID']);
+}