diff --git a/npm/ng-packs/packages/core/src/lib/handlers/routes.handler.ts b/npm/ng-packs/packages/core/src/lib/handlers/routes.handler.ts
index 10f95fa0c4..637f7b4165 100644
--- a/npm/ng-packs/packages/core/src/lib/handlers/routes.handler.ts
+++ b/npm/ng-packs/packages/core/src/lib/handlers/routes.handler.ts
@@ -12,7 +12,7 @@ export class RoutesHandler {
   }
 
   addRoutes() {
-    this.router?.config.forEach(({ path = '', data }) => {
+    this.router?.config?.forEach(({ path = '', data }) => {
       if (!data?.routes) return;
 
       if (Array.isArray(data.routes)) {