diff --git a/ionic/decorators/app.ts b/ionic/decorators/app.ts
index 07a81afaf9..b759a8370b 100644
--- a/ionic/decorators/app.ts
+++ b/ionic/decorators/app.ts
@@ -30,6 +30,7 @@ export interface AppMetadata {
   styles?: string[];
   changeDetection?: ChangeDetectionStrategy;
   encapsulation?: ViewEncapsulation;
+  config?: any;
 }
 
 /**