diff --git a/files/sysadmin_guide.md b/files/sysadmin_guide.md
index 41bbdfd1c..bf26f9d31 100644
--- a/files/sysadmin_guide.md
+++ b/files/sysadmin_guide.md
@@ -386,12 +386,13 @@ server {
 		try_files $uri $uri/ =404;
 	}
 
-	location = /api {
-		return 302 /api/;
-	}
-
 	location /api/ {
+		rewrite ^/api/(.*)$ /$1 break;
 		proxy_pass http://backend/;
+
+		proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
 	}
 }
 ```