diff --git a/backend/src/routes/resources/main.ts b/backend/src/routes/resources/main.ts
index b88cba5..7fa9f24 100644
--- a/backend/src/routes/resources/main.ts
+++ b/backend/src/routes/resources/main.ts
@@ -19,7 +19,7 @@ import { diffObjects } from "../../utils/diff";
 import { recalculateServicePricesForTenant } from "../../modules/service-price-recalculation.service";
 import { decrypt, encrypt } from "../../utils/crypt";
 
-const PORTAL_ALLOWED_RESOURCES = new Set(["customers", "contracts", "createddocuments"])
+const PORTAL_ALLOWED_RESOURCES = new Set(["customers", "contracts", "createddocuments", "contracttypes"])
 const PORTAL_VISIBLE_DOCUMENT_TYPES = ["invoices", "advanceInvoices", "cancellationInvoices"]
 
 // -------------------------------------------------------------