diff --git a/types/js/finder.d.ts b/types/js/finder.d.ts
index e182197b..f5e65ac1 100644
--- a/types/js/finder.d.ts
+++ b/types/js/finder.d.ts
@@ -2,6 +2,7 @@ export class Finder {
     constructor(window: object);
     private _onError;
     private _setup;
+    private _setEvent;
     private _correspond;
     private _createTreeWalker;
     private _prepareQuerySelectorWalker;