diff --git a/index.d.ts b/index.d.ts
index 273c899b90..bc63782d3a 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -801,3 +801,4 @@ export interface IService { }// tslint:disable-line
 
 export interface IController { } // tslint:disable-line
 
+export as namespace Egg;
\ No newline at end of file