diff --git a/src/compiler/transform.ts b/src/compiler/transform.ts
index 2c0791a5f93..6d4449c58c7 100644
--- a/src/compiler/transform.ts
+++ b/src/compiler/transform.ts
@@ -5,7 +5,7 @@
 /// <reference path="transforms/module/es6.ts" />
 /// <reference path="transforms/jsx.ts" />
 /// <reference path="transforms/es6.ts" />
-const FORCE_TRANSFORMS = false;
+const FORCE_TRANSFORMS = true;
 
 /* @internal */
 namespace ts {