diff --git a/src/components/confirmationservice/ConfirmationService.d.ts b/src/components/confirmationservice/ConfirmationService.d.ts
index 269b0f83a..0a1a610cf 100644
--- a/src/components/confirmationservice/ConfirmationService.d.ts
+++ b/src/components/confirmationservice/ConfirmationService.d.ts
@@ -5,7 +5,7 @@ declare const plugin: Plugin;
 export default plugin;
 
 interface ConfirmationServiceMethods {
-    require(options: ConfirmationOptions): any;
+    require(options: ConfirmationOptions): void;
     close(): void;
 }