listen(0) -> listen(1)
diff --git a/Demo/sockets/ftp.py b/Demo/sockets/ftp.py
index f5bbdf5..1b672d3 100755
--- a/Demo/sockets/ftp.py
+++ b/Demo/sockets/ftp.py
@@ -80,7 +80,7 @@
 	nextport = (nextport+1) % 16
 	r = socket(AF_INET, SOCK_STREAM)
 	r.bind(gethostbyname(gethostname()), port)
-	r.listen(0)
+	r.listen(1)
 	sendportcmd(s, f, port)
 	return r