diff --git a/types/koa-bodyparser/index.d.ts b/types/koa-bodyparser/index.d.ts
index 234b07d00c..fe6e3f23f9 100644
--- a/types/koa-bodyparser/index.d.ts
+++ b/types/koa-bodyparser/index.d.ts
@@ -19,6 +19,7 @@ import * as Koa from "koa";
 declare module "koa" {
     interface Request {
         body: any;
+        rawBody: any;
     }
 }