diff --git a/src/server/config.ts b/src/server/config.ts
index 4b2bd162..74020d78 100644
--- a/src/server/config.ts
+++ b/src/server/config.ts
@@ -19,7 +19,7 @@ export interface Config {
   TokenConfig: TokenConfig;
 }
 
-const hostname = process.env.HOST ?? "localhost";
+const hostname = process.env.ISSUER_HOST ?? "localhost";
 const port = process.env.PORT ?? "9229";
 
 export const DefaultConfig: Config = {
diff --git a/src/server/server.ts b/src/server/server.ts
index 8dcf71cb..24391bba 100644
--- a/src/server/server.ts
+++ b/src/server/server.ts
@@ -55,7 +55,7 @@ export const createServer = (
     });
   });
 
-  const hostname = process.env.HOST ?? "localhost";
+  const hostname = process.env.ISSUER_HOST ?? "localhost";
   const port = process.env.PORT ?? "9229";
 
   app.get("/:userPoolId/.well-known/openid-configuration", (req, res) => {