diff --git a/conf/nginx.conf b/conf/nginx.conf
index 0416ddf..8217626 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -20,7 +20,7 @@ location @huginn {
   proxy_connect_timeout   300;
   proxy_redirect          off;
 
-  proxy_set_header    Host                $http_host;
+  proxy_set_header    Host                $host;
   proxy_set_header    X-Real-IP           $remote_addr;
   proxy_set_header    X-Forwarded-Ssl     on;
   proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;