diff --git a/src/components/infinite-scroll/infinite-scroll.ts b/src/components/infinite-scroll/infinite-scroll.ts
index 0cba70d9c5..72fc71189c 100644
--- a/src/components/infinite-scroll/infinite-scroll.ts
+++ b/src/components/infinite-scroll/infinite-scroll.ts
@@ -276,7 +276,7 @@ export class InfiniteScroll {
   * Pass a promise inside `waitFor()` within the `infinite` output event handler in order to
   * change state of infiniteScroll to "complete"
   */
-  waitFor(action: Promise) {
+  waitFor(action: Promise<any>) {
     const enable = this.complete.bind(this);
     action.then(enable, enable);
   }