diff --git a/provider.ts b/provider.ts
index c41d350..bed2c2e 100644
--- a/provider.ts
+++ b/provider.ts
@@ -10,13 +10,14 @@ import { readFileSync } from "fs";
 dotenv.config({ quiet: true });
 const AUTH_PROVIDER_PORT = Number(process.env.AUTH_PROVIDER_PORT) || 3000;
 const ACCOUNT_USERNAME = String(process.env.ACCOUNT_USERNAME) || "unknown_user";
+const PROVIDER_ISSUER = String(process.env.PROVIDER_ISSUER);
 const provider_login_page = Handlebars.compile(
   readFileSync(join(dirname(fileURLToPath(import.meta.url)), "provider.html"), {
     encoding: "utf-8",
   }),
 );
 
-const provider = new oidc.Provider("http://localhost:3000", {
+const provider = new oidc.Provider(PROVIDER_ISSUER, {
   features: {
     registration: {
       enabled: true,