diff --git a/nixos/modules/services/development/zammad.nix b/nixos/modules/services/development/zammad.nix
index 6b91626c07da..8887c7b74b67 100644
--- a/nixos/modules/services/development/zammad.nix
+++ b/nixos/modules/services/development/zammad.nix
@@ -279,6 +279,7 @@ in
           locations = {
             "/" = {
               proxyPass = "http://127.0.0.1:${toString config.services.zammad.port}";
+              recommendedProxySettings = true;
               root = "${config.services.zammad.package}/public/";
               extraConfig = # nginx
                 ''