1 files changed, 1 insertions, 1 deletions
diff --git a/docs/reverse_proxy.md b/docs/reverse_proxy.md
index 7128af114e..45de2b1f65 100644
--- a/docs/reverse_proxy.md
+++ b/docs/reverse_proxy.md
@@ -74,7 +74,7 @@ server {
         proxy_pass http://localhost:8008;
         proxy_set_header X-Forwarded-For $remote_addr;
         proxy_set_header X-Forwarded-Proto $scheme;
-        proxy_set_header Host $host;
+        proxy_set_header Host $host:$server_port;
 
         # Nginx by default only allows file uploads up to 1M in size
         # Increase client_max_body_size to match max_upload_size defined in homeserver.yaml