diff --git a/graal-nodejs/lib/internal/fs/promises.js b/graal-nodejs/lib/internal/fs/promises.js
index c4409d51b9d..67bdf668536 100644
--- a/graal-nodejs/lib/internal/fs/promises.js
+++ b/graal-nodejs/lib/internal/fs/promises.js
@@ -248,6 +248,9 @@ class FileHandle extends EventEmitterMixin(JSTransferable) {
   /**
    * @typedef {import('../webstreams/readablestream').ReadableStream
    * } ReadableStream
+   * @param {{
+   *   type?: string;
+   *   }} [options]
    * @returns {ReadableStream}
    */
   readableWebStream(options = kEmptyObject) {