diff --git a/types/react-lazyload/index.d.ts b/types/react-lazyload/index.d.ts
index 2766d998b0..7ec2ae156c 100644
--- a/types/react-lazyload/index.d.ts
+++ b/types/react-lazyload/index.d.ts
@@ -24,3 +24,5 @@ export default class LazyLoad extends Component<LazyLoadProps> {
 }
 
 export  function lazyload(option: {}): LazyLoad;
+
+export function forceCheck(): void;