diff --git a/lib/internal/modules/esm/loader.js b/lib/internal/modules/esm/loader.js
index 04982ca94a9221..9834bce7a90b9c 100644
--- a/lib/internal/modules/esm/loader.js
+++ b/lib/internal/modules/esm/loader.js
@@ -295,15 +295,11 @@ class ESMLoader {
    * @param {string} originalSpecifier The specified URL path of the module to
    *                                   be resolved.
    * @param {string} [parentURL] The URL path of the module's parent.
-   * @param {ImportAssertions} [importAssertions] Assertions from the import
+   * @param {ImportAssertions} importAssertions Assertions from the import
    *                                              statement or expression.
    * @returns {Promise<{ format: string, url: URL['href'] }>}
    */
-  async resolve(
-    originalSpecifier,
-    parentURL,
-    importAssertions = { __proto__: null },
-  ) {
+  async resolve(originalSpecifier, parentURL, importAssertions) {
     if (this.#hooks) {
       return this.#hooks.resolve(originalSpecifier, parentURL, importAssertions);
     }