diff --git a/config/nginx.sample.conf b/config/nginx.sample.conf
index f22dc22f8b8..354e2368a9b 100644
--- a/config/nginx.sample.conf
+++ b/config/nginx.sample.conf
@@ -104,6 +104,7 @@ server {
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Request-Start "t=${msec}";
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Host "";
       proxy_set_header X-Forwarded-Proto $thescheme;
       proxy_pass http://discourse;
       break;
@@ -149,6 +150,7 @@ server {
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Request-Start "t=${msec}";
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Host "";
       proxy_set_header X-Forwarded-Proto $thescheme;
       proxy_set_header X-Sendfile-Type X-Accel-Redirect;
       proxy_set_header X-Accel-Mapping $public/=/downloads/;
@@ -181,6 +183,7 @@ server {
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Request-Start "t=${msec}";
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Host "";
       proxy_set_header X-Forwarded-Proto $thescheme;
       proxy_set_header X-Sendfile-Type X-Accel-Redirect;
       proxy_set_header X-Accel-Mapping $public/=/downloads/;
@@ -196,6 +199,7 @@ server {
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Request-Start "t=${msec}";
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Host "";
       proxy_set_header X-Forwarded-Proto $thescheme;
 
       # if Set-Cookie is in the response nothing gets cached
@@ -244,6 +248,7 @@ server {
       proxy_set_header Host $http_host;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Host "";
       proxy_set_header X-Forwarded-Proto $thescheme;
       proxy_http_version 1.1;
       proxy_buffering off;
@@ -265,6 +270,7 @@ server {
     proxy_set_header X-Request-Start "t=${msec}";
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header X-Forwarded-Host "";
     proxy_set_header X-Forwarded-Proto $thescheme;
     proxy_pass http://discourse;
   }