diff --git a/sources/Application/Helper/Session.php b/sources/Application/Helper/Session.php
index 523b77683..c17a79a90 100644
--- a/sources/Application/Helper/Session.php
+++ b/sources/Application/Helper/Session.php
@@ -38,7 +38,7 @@ class Session
 			return;
 		}
 
-		if (!self::$bIsInitialized) {
+		if (!headers_sent()) {
 			SessionHandler::session_set_save_handler();
 			session_name('itop-'.md5(APPROOT));
 		}