diff --git a/npm/ng-packs/packages/core/src/lib/models/config.ts b/npm/ng-packs/packages/core/src/lib/models/config.ts
index 5f19907388..be640a4dcf 100644
--- a/npm/ng-packs/packages/core/src/lib/models/config.ts
+++ b/npm/ng-packs/packages/core/src/lib/models/config.ts
@@ -24,6 +24,7 @@ export namespace Config {
 
   export interface ApiConfig {
     [key: string]: string;
+    rootNamespace?: string;
     url: string;
   }