diff --git a/nixos/linux.nix b/nixos/linux.nix
index 07144ab..723944b 100644
--- a/nixos/linux.nix
+++ b/nixos/linux.nix
@@ -389,6 +389,7 @@ in {
         volumes = [];
         environment = {
 		POSTMARK_SERVER_TOKEN = "e718a146-c590-4550-a750-a3b925056e29";
+		BETTER_AUTH_URL = "https://coldairnetworks.com";
 		NODE_TLS_REJECT_UNAUTHORIZED = "0";
         };
         environmentFiles = [ config.age.secrets.postmark.path config.age.secrets.coldairnetworks.path ];