diff --git a/lib/6to5/transform.js b/lib/6to5/transform.js
index 60324824d3..65da474122 100644
--- a/lib/6to5/transform.js
+++ b/lib/6to5/transform.js
@@ -102,7 +102,8 @@ transform.transformers = {
   _aliasFunctions:          require("./transformers/_alias-functions"),
   _blockHoist:              require("./transformers/_block-hoist"),
   _declarations:            require("./transformers/_declarations"),
-  _useStrict:               require("./transformers/_use-strict")
+
+  useStrict:                require("./transformers/use-strict")
 };
 
 _.each(transform.transformers, function (transformer, key) {
diff --git a/lib/6to5/transformers/_use-strict.js b/lib/6to5/transformers/use-strict.js
similarity index 100%
rename from lib/6to5/transformers/_use-strict.js
rename to lib/6to5/transformers/use-strict.js