diff --git a/lib/internal/fs/promises.js b/lib/internal/fs/promises.js
index 42dbbcc361ad99..d807cb71f7127f 100644
--- a/lib/internal/fs/promises.js
+++ b/lib/internal/fs/promises.js
@@ -264,7 +264,8 @@ async function rename(oldPath, newPath) {
 }
 
 async function truncate(path, len = 0) {
-  return ftruncate(await open(path, 'r+'), len);
+  const fd = await open(path, 'r+');
+  return ftruncate(fd, len).finally(fd.close.bind(fd));
 }
 
 async function ftruncate(handle, len = 0) {