diff --git a/.changes/fs-rename-optional-type.md b/.changes/fs-rename-optional-type.md
new file mode 100644
index 00000000..48b42d6e
--- /dev/null
+++ b/.changes/fs-rename-optional-type.md
@@ -0,0 +1,5 @@
+---
+"fs-js": patch
+---
+
+Make `rename` function third paramter optional as it was supposed to be.
\ No newline at end of file
diff --git a/plugins/fs/guest-js/index.ts b/plugins/fs/guest-js/index.ts
index 793deb4e..3d9aca34 100644
--- a/plugins/fs/guest-js/index.ts
+++ b/plugins/fs/guest-js/index.ts
@@ -853,7 +853,7 @@ interface RenameOptions {
 async function rename(
   oldPath: string | URL,
   newPath: string | URL,
-  options: RenameOptions,
+  options?: RenameOptions,
 ): Promise<void> {
   if (
     (oldPath instanceof URL && oldPath.protocol !== "file:") ||