diff --git a/plugin.py b/plugin.py
index 047ab95..cd53e0d 100644
--- a/plugin.py
+++ b/plugin.py
@@ -291,7 +291,7 @@ def vmvnc(vm_id):
     novnc.spawn(vnc_target, vnc_options)
     
     external_url = ioconfig.parser.get('general', 'novnc_url')
-    prefix = external_url + "/?host=" + myip + "&port=" + listenport + "&encrypt=0&true_color=1&password="
+    prefix = external_url + "?host=" + myip + "&port=" + listenport + "&encrypt=0&true_color=1&password="
     vnc_url = prefix + ticket['ticket']
 
     ioconfig.logger.info('slave[{}]> vnc port {} ready'.format(slave_name, listenport))