diff --git a/src/ContainerDetailsSubheader.react.js b/src/ContainerDetailsSubheader.react.js
index 377dfcfa72..8f9b2f3879 100644
--- a/src/ContainerDetailsSubheader.react.js
+++ b/src/ContainerDetailsSubheader.react.js
@@ -9,7 +9,7 @@ var ContainerUtil = require('./ContainerUtil');
 var machine = require('./DockerMachine');
 var RetinaImage = require('react-retina-image');
 var webPorts = require('./Util').webPorts;
-var classNames = require('classNames');
+var classNames = require('classnames');
 
 var ContainerDetailsSubheader = React.createClass({
   contextTypes: {