diff --git a/src/shared/types/ReactPropTypesSecret.js b/src/shared/types/ReactPropTypesSecret.js
index 21eed49a75..0f47ff2afb 100644
--- a/src/shared/types/ReactPropTypesSecret.js
+++ b/src/shared/types/ReactPropTypesSecret.js
@@ -6,13 +6,12 @@
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
  *
+ * @flow
  * @providesModule ReactPropTypesSecret
  */
 
-
 'use strict';
 
-
 const ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';
 
 module.exports = ReactPropTypesSecret;