diff --git a/src/renderers/shared/fiber/ReactFiberDevToolsHook.js b/src/renderers/shared/fiber/ReactFiberDevToolsHook.js
index ef0e0b2c682c..0e228e9609e9 100644
--- a/src/renderers/shared/fiber/ReactFiberDevToolsHook.js
+++ b/src/renderers/shared/fiber/ReactFiberDevToolsHook.js
@@ -10,15 +10,13 @@
  * @flow
  */
 
-/* globals __REACT_DEVTOOLS_GLOBAL_HOOK__ */
-
-declare var __REACT_DEVTOOLS_GLOBAL_HOOK__ : Object | void;
-
 'use strict';
 
 import type { Fiber } from 'ReactFiber';
 import type { FiberRoot } from 'ReactFiberRoot';
 
+declare var __REACT_DEVTOOLS_GLOBAL_HOOK__ : Object | void;
+
 if (__DEV__) {
   var warning = require('warning');
 }