diff --git a/etc/emq.conf b/etc/emq.conf
index 694f0fc1e..48c437cf1 100644
--- a/etc/emq.conf
+++ b/etc/emq.conf
@@ -222,7 +222,7 @@ mqtt.listener.http.max_clients = 64
 ## mqtt.listener.https = 8084
 ## mqtt.listener.https.acceptors = 4
 ## mqtt.listener.https.max_clients = 64
-## mqtt.listener.https.handshake_timeout = 10
+## mqtt.listener.https.handshake_timeout = 2000
 ## mqtt.listener.https.certfile = etc/certs/cert.pem
 ## mqtt.listener.https.keyfile = etc/certs/key.pem
 ## mqtt.listener.https.cacertfile = etc/certs/cacert.pem