diff --git a/services/tracktrain.nix b/services/tracktrain.nix
index 34ffa38..f706641 100644
--- a/services/tracktrain.nix
+++ b/services/tracktrain.nix
@@ -22,9 +22,6 @@ in
     locations."/" = {
       proxyPass = "http://192.168.42.41:4000";
       proxyWebsockets = true;
-      extraConfig = ''
-        add_header 'Access-Control-Allow-Origin' '*' always;
-      '';
     };
     # note: this shadows the /metrics endpoint of tracktrain
     # in case you remove this, please consider putting something