diff --git a/conf/nginx.conf b/conf/nginx.conf
index b38c6d0..d225572 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -2,7 +2,8 @@ location ^~ __PATH__/ {
   proxy_pass        http://127.0.0.1:__PORT__/;
   proxy_http_version 1.1;
   proxy_set_header Upgrade $http_upgrade;
-  proxy_set_header Connection $proxy_connection;
+  #proxy_set_header Connection $proxy_connection;
+  proxy_set_header Connection "upgrade";
   proxy_set_header  X-Forwarded-Host $server_name__SUB_PATH__;
   proxy_set_header  X-Forwarded-Proto $scheme;
   proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;