diff --git a/lib/6to5/transformation/transformers/index.js b/lib/6to5/transformation/transformers/index.js
index 9d09450492..0428a3de0c 100644
--- a/lib/6to5/transformation/transformers/index.js
+++ b/lib/6to5/transformation/transformers/index.js
@@ -50,6 +50,11 @@ module.exports = {
   // needs to be before `es6.blockScoping` as default parameters have a TDZ
   "es6.parameters.default":                require("./es6/parameters.default"),
 
+  "es6.parameters.rest":                   require("./es6/parameters.rest"),
+
+  // needs to be before `es6.blockScoping` as let variables may be produced
+  "es6.destructuring":                     require("./es6/destructuring"),
+
   // needs to be before `_aliasFunction` due to block scopes sometimes being wrapped in a
   // closure
   "es6.blockScoping":                      require("./es6/block-scoping"),
@@ -57,10 +62,6 @@ module.exports = {
   // needs to be after `es6.blockScoping` due to needing `letReferences` set on blocks
   "es6.blockScopingTDZ":                   require("./es6/block-scoping-tdz"),
 
-  "es6.parameters.rest":                   require("./es6/parameters.rest"),
-
-  "es6.destructuring":                     require("./es6/destructuring"),
-
   "es6.tailCall":                          require("./es6/tail-call"),
 
   regenerator:                             require("./other/regenerator"),