diff --git a/nixos/modules/services/networking/cloudflare-dyndns.nix b/nixos/modules/services/networking/cloudflare-dyndns.nix
index e6e9388dd22b..4e2684b39d43 100644
--- a/nixos/modules/services/networking/cloudflare-dyndns.nix
+++ b/nixos/modules/services/networking/cloudflare-dyndns.nix
@@ -92,6 +92,7 @@ in
           DynamicUser = true;
           StateDirectory = "cloudflare-dyndns";
           EnvironmentFile = cfg.apiTokenFile;
+          Environment = [ "XDG_CACHE_HOME=%S/cloudflare-dyndns/.cache" ];
           ExecStart =
             let
               args =