diff --git a/stream.py b/stream.py
index a64a589..a46d904 100755
--- a/stream.py
+++ b/stream.py
@@ -21,7 +21,10 @@ class MainHandler(tornado.web.RequestHandler):
             except Exception as e:
                 self.write(str(e))
             else:
-                self.redirect(endpoint, status=303)
+                if endpoint is None:
+                    self.write("stream not found")
+                else:
+                    self.redirect(endpoint, status=303)
 try:
     app_web = tornado.web.Application([(tornado.routing.AnyMatches(), MainHandler)])
     app_web.listen(8080)