diff --git a/modules/components/Routes.js b/modules/components/Routes.js
index d2e02394c6..97ad122033 100644
--- a/modules/components/Routes.js
+++ b/modules/components/Routes.js
@@ -1,8 +1,8 @@
 var React = require('react');
 var warning = require('react/lib/warning');
+var copyProperties = require('react/lib/copyProperties');
 var Promise = require('es6-promise').Promise;
 var goBack = require('../helpers/goBack');
-var mergeProperties = require('../helpers/mergeProperties');
 var replaceWith = require('../helpers/replaceWith');
 var transitionTo = require('../helpers/transitionTo');
 var Route = require('../components/Route');
@@ -216,7 +216,7 @@ function Transition(path) {
   this.isCancelled = false;
 }
 
-mergeProperties(Transition.prototype, {
+copyProperties(Transition.prototype, {
 
   abort: function () {
     this.cancelReason = new Abort();
@@ -450,7 +450,7 @@ function computeHandlerProps(matches, query) {
       if (arguments.length > 2 && typeof arguments[2] !== 'undefined')
         throw new Error('Passing children to a route handler is not supported');
 
-      return route.props.handler(mergeProperties(props, addedProps));
+      return route.props.handler(copyProperties(props, addedProps));
     }.bind(this, props);
   });
 
diff --git a/modules/helpers/Path.js b/modules/helpers/Path.js
index 919ef8c15c..19d6f26a8f 100644
--- a/modules/helpers/Path.js
+++ b/modules/helpers/Path.js
@@ -1,6 +1,6 @@
 var invariant = require('react/lib/invariant');
+var copyProperties = require('react/lib/copyProperties');
 var qs = require('querystring');
-var mergeProperties = require('./mergeProperties');
 var URL = require('./URL');
 
 var paramMatcher = /((?::[a-z_$][a-z0-9_$]*)|\*)/ig;
@@ -125,7 +125,7 @@ var Path = {
     var existingQuery = Path.extractQuery(path);
 
     if (existingQuery)
-      query = query ? mergeProperties(existingQuery, query) : existingQuery;
+      query = query ? copyProperties(existingQuery, query) : existingQuery;
 
     var queryString = query && qs.stringify(query);
 
diff --git a/modules/helpers/mergeProperties.js b/modules/helpers/mergeProperties.js
deleted file mode 100644
index 0bca16ce42..0000000000
--- a/modules/helpers/mergeProperties.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function mergeProperties(object, properties) {
-  for (var property in properties) {
-    if (properties.hasOwnProperty(property))
-      object[property] = properties[property];
-  }
-
-  return object;
-}
-
-module.exports = mergeProperties;