diff --git a/types/react-collapsible/index.d.ts b/types/react-collapsible/index.d.ts
index f52e953684..ad56aba34e 100644
--- a/types/react-collapsible/index.d.ts
+++ b/types/react-collapsible/index.d.ts
@@ -2,7 +2,9 @@
 // Project: https://github.com/glennflanagan/react-collapsible#readme
 // Definitions by: knegusen <https://github.com/knegusen>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.6
 
+import * as React from "react";
 export interface CollapsibleProp {
     children?: string | React.ReactNode;
     transitionTime?: number;