diff --git a/iscroll/iscroll-5-lite.d.ts b/iscroll/iscroll-5-lite.d.ts
index 2aef0ce39f..f22ae6f89c 100644
--- a/iscroll/iscroll-5-lite.d.ts
+++ b/iscroll/iscroll-5-lite.d.ts
@@ -20,7 +20,7 @@ interface IScrollOptions {
 	useTransition?: boolean;
 }
 
-declare class iScroll {
+declare class IScroll {
 
 	constructor (element: string, options?: IScrollOptions);
 	constructor (element: HTMLElement, options?: IScrollOptions);