diff --git a/src/renderers/dom/shared/eventPlugins/SimpleEventPlugin.js b/src/renderers/dom/shared/eventPlugins/SimpleEventPlugin.js
index 02973f910cd62..8c53cf882b3d3 100644
--- a/src/renderers/dom/shared/eventPlugins/SimpleEventPlugin.js
+++ b/src/renderers/dom/shared/eventPlugins/SimpleEventPlugin.js
@@ -24,7 +24,10 @@ var SyntheticUIEvent = require('SyntheticUIEvent');
 var SyntheticWheelEvent = require('SyntheticWheelEvent');
 
 var getEventCharCode = require('getEventCharCode');
-var warning = require('fbjs/lib/warning');
+
+if (__DEV__) {
+  var warning = require('fbjs/lib/warning');
+}
 
 import type {TopLevelTypes} from 'BrowserEventConstants';
 import type {