diff --git a/src/ol/featureloader.js b/src/ol/featureloader.js
index 26ef3be66b..5eed20a2f8 100644
--- a/src/ol/featureloader.js
+++ b/src/ol/featureloader.js
@@ -136,7 +136,7 @@ export function xhr(url, format) {
    * @param {import("./extent.js").Extent} extent Extent.
    * @param {number} resolution Resolution.
    * @param {import("./proj/Projection.js").default} projection Projection.
-   * @param {function(): void} [success] Success
+   * @param {function(Array<import("./Feature.js").default>): void} [success] Success
    *      Function called when loading succeeded.
    * @param {function(): void} [failure] Failure
    *      Function called when loading failed.