diff --git a/docker/conf/nginx.conf b/docker/conf/nginx.conf
--- a/docker/conf/nginx.conf
+++ b/docker/conf/nginx.conf
@@ -106,6 +106,7 @@
       set $upstream "http://grafana:3000";
       rewrite ^/grafana/(.*)$ /$1 break;
       proxy_pass $upstream;
+      proxy_set_header Host $http_host;
     }
     location / {
       set $upstream "http://swh-web:5004";