diff --git a/frontend/src/auth/auth.ts b/frontend/src/auth/auth.ts
index 32f7033..8c056e3 100644
--- a/frontend/src/auth/auth.ts
+++ b/frontend/src/auth/auth.ts
@@ -27,7 +27,7 @@ declare module "next-auth" {
 const issuerPublic = process.env.KEYCLOAK_ISSUER || 'http://localhost:30808/realms/workclub'
 const issuerInternal = process.env.KEYCLOAK_ISSUER_INTERNAL || issuerPublic
 const oidcPublic = `${issuerPublic}/protocol/openid-connect`
-const oidcInternal = `${issuerInternal.replace(':8080', ':8081')}/protocol/openid-connect`
+const oidcInternal = `${issuerInternal}/protocol/openid-connect`
 
 export const { handlers, signIn, signOut, auth } = NextAuth({
   providers: [