diff --git a/docker/default.conf b/docker/default.conf
index f4682a4..d0dd483 100644
--- a/docker/default.conf
+++ b/docker/default.conf
@@ -15,18 +15,19 @@ server {
     ssl_certificate /etc/nginx/certs/ogcore.uds-test.net.crt.pem;
     ssl_certificate_key /etc/nginx/certs/ogcore.uds-test.net.key.pem;
 
-    location /mercure/ {
+     location /mercure/ {
         proxy_pass http://ogcore-mercure:3000/;
         proxy_read_timeout 24h;
         proxy_http_version 1.1;
         proxy_set_header Connection "";
+        proxy_set_header Host $host:$server_port;
 
         # Enable fast reply in SSE
         proxy_buffering off;
 
-        ## Be sure to set USE_FORWARDED_HEADERS=1 to allow the hub to use those headers ##
+        # Forward headers
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Host $host;
+        proxy_set_header X-Forwarded-Host $host:$server_port;
         proxy_set_header X-Forwarded-Proto $scheme;
     }