diff --git a/nix/infra/nginx.nix b/nix/infra/nginx.nix
index 686b0b4..fbe1985 100644
--- a/nix/infra/nginx.nix
+++ b/nix/infra/nginx.nix
@@ -20,7 +20,12 @@
       "api.clan-war.net" = {
         forceSSL = true;
         enableACME = true;
-        locations."/".proxyPass = "http://localhost:8080";
+        locations."/" = {
+          proxyPass = "http://localhost:8080";
+          extraConfig = ''
+            proxy_set_header Access-Control-Allow-Origin https://clan-war.net;
+          '';
+        };
       };
     };
   };