diff --git a/lib/internal/util.js b/lib/internal/util.js
index 17af1bbcc56e0f..ab17d78204039d 100644
--- a/lib/internal/util.js
+++ b/lib/internal/util.js
@@ -147,15 +147,15 @@ exports.normalizeEncoding = function normalizeEncoding(enc) {
       case 'utf-8':
         return 'utf8';
       case 'ucs2':
-      case 'utf16le':
       case 'ucs-2':
+      case 'utf16le':
       case 'utf-16le':
         return 'utf16le';
+      case 'latin1':
       case 'binary':
         return 'latin1';
       case 'base64':
       case 'ascii':
-      case 'latin1':
       case 'hex':
         return enc;
       default: