diff --git a/zunclient/common/websocketclient/websocketclient.py b/zunclient/common/websocketclient/websocketclient.py
index 7a1d24f0..06fae3c5 100644
--- a/zunclient/common/websocketclient/websocketclient.py
+++ b/zunclient/common/websocketclient/websocketclient.py
@@ -378,7 +378,7 @@ class WINCHHandler(object):
 
 
 def do_attach(zunclient, url, container_id, escape, close_wait):
-    if url.startswith("ws://"):
+    if url.startswith("ws://") or url.startswith("wss://"):
         try:
             wscls = WebSocketClient(zunclient=zunclient, url=url,
                                     id=container_id, escape=escape,