diff --git a/docs/rest_api/nginx b/docs/rest_api/nginx
index a8d17ff9..de3e79c5 100644
--- a/docs/rest_api/nginx
+++ b/docs/rest_api/nginx
@@ -8,7 +8,7 @@ server {
 
     location / {
         proxy_pass http://localhost:5001;
-        proxy_set_header Host $host;
+        proxy_set_header Host $host:$port;
         proxy_set_header X-Forwarded-For $remote_addr;
     }
 }