diff --git a/packages/babel/src/transformation/file/index.js b/packages/babel/src/transformation/file/index.js
index 6505704cb3..d7f4f4147a 100644
--- a/packages/babel/src/transformation/file/index.js
+++ b/packages/babel/src/transformation/file/index.js
@@ -676,10 +676,6 @@ export default class File {
       map:      map
     };
 
-    result.then = function (callback) {
-      callback(result);
-    };
-
     if (this.opts.code) {
       result.code = code;
     }