diff --git a/configuration/hosts/hainich/services/murmur.nix b/configuration/hosts/hainich/services/murmur.nix
index a1230f8..1b8ea08 100644
--- a/configuration/hosts/hainich/services/murmur.nix
+++ b/configuration/hosts/hainich/services/murmur.nix
@@ -17,6 +17,9 @@
     enableACME = true;
     locations."/" = {
       proxyPass = "https://stuebinm.4future.dev/mumble.infra4future.de/";
+      extraConfig = ''
+        proxy_set_header Host $host;
+      '';
     };
   };
   # set ACLs so that the murmur user can read the certificates
diff --git a/configuration/hosts/hainich/services/nginx.nix b/configuration/hosts/hainich/services/nginx.nix
index a8ac79c..462b747 100644
--- a/configuration/hosts/hainich/services/nginx.nix
+++ b/configuration/hosts/hainich/services/nginx.nix
@@ -14,7 +14,12 @@
     rc3clustersite = {
       enableACME = true;
       forceSSL = true;
-      locations."/".proxyPass = "https://stuebinm.4future.dev/about-future-website/";
+      locations."/" = {
+        proxyPass = "https://stuebinm.4future.dev/about-future-website/";
+        extraConfig = ''
+          proxy_set_header Host $host;
+        '';
+      };
     };
   in {
     "hainich.chaoswit.ch" = {