diff --git a/doc/api/esm.md b/doc/api/esm.md
index 4787dfc74da92d..84fded5ee8cfa9 100644
--- a/doc/api/esm.md
+++ b/doc/api/esm.md
@@ -287,7 +287,7 @@ This feature is only available with the `--experimental-import-meta-resolve`
 command flag enabled.
 
 * `specifier` {string} The module specifier to resolve relative to `parent`.
-* `parent` {string|URL} The absolute parent module URL to resolve from. If none
+* `parent` {string} The absolute parent module URL to resolve from. If none
   is specified, the value of `import.meta.url` is used as the default.
 * Returns: {Promise}