diff --git a/examples/async/server.js b/examples/async/server.js
index 20329ce3fa..b1b9f6a814 100644
--- a/examples/async/server.js
+++ b/examples/async/server.js
@@ -3,7 +3,7 @@ var webpackDevMiddleware = require('webpack-dev-middleware');
 var webpackHotMiddleware = require('webpack-hot-middleware');
 var config = require('./webpack.config');
 
-var app = new require('express')();
+var app = new (require('express'))();
 var port = 3000;
 
 var compiler = webpack(config);
diff --git a/examples/counter/server.js b/examples/counter/server.js
index 20329ce3fa..b1b9f6a814 100644
--- a/examples/counter/server.js
+++ b/examples/counter/server.js
@@ -3,7 +3,7 @@ var webpackDevMiddleware = require('webpack-dev-middleware');
 var webpackHotMiddleware = require('webpack-hot-middleware');
 var config = require('./webpack.config');
 
-var app = new require('express')();
+var app = new (require('express'))();
 var port = 3000;
 
 var compiler = webpack(config);
diff --git a/examples/real-world/server.js b/examples/real-world/server.js
index 68be31dfc0..eacca6136d 100644
--- a/examples/real-world/server.js
+++ b/examples/real-world/server.js
@@ -3,7 +3,7 @@ var webpackDevMiddleware = require('webpack-dev-middleware');
 var webpackHotMiddleware = require('webpack-hot-middleware');
 var config = require('./webpack.config');
 
-var app = new require('express')();
+var app = new (require('express'))();
 var port = 3000;
 
 var compiler = webpack(config);
diff --git a/examples/shopping-cart/server.js b/examples/shopping-cart/server.js
index 20329ce3fa..b1b9f6a814 100644
--- a/examples/shopping-cart/server.js
+++ b/examples/shopping-cart/server.js
@@ -3,7 +3,7 @@ var webpackDevMiddleware = require('webpack-dev-middleware');
 var webpackHotMiddleware = require('webpack-hot-middleware');
 var config = require('./webpack.config');
 
-var app = new require('express')();
+var app = new (require('express'))();
 var port = 3000;
 
 var compiler = webpack(config);
diff --git a/examples/todomvc/server.js b/examples/todomvc/server.js
index 20329ce3fa..b1b9f6a814 100644
--- a/examples/todomvc/server.js
+++ b/examples/todomvc/server.js
@@ -3,7 +3,7 @@ var webpackDevMiddleware = require('webpack-dev-middleware');
 var webpackHotMiddleware = require('webpack-hot-middleware');
 var config = require('./webpack.config');
 
-var app = new require('express')();
+var app = new (require('express'))();
 var port = 3000;
 
 var compiler = webpack(config);
diff --git a/examples/todos-with-undo/server.js b/examples/todos-with-undo/server.js
index 20329ce3fa..b1b9f6a814 100644
--- a/examples/todos-with-undo/server.js
+++ b/examples/todos-with-undo/server.js
@@ -3,7 +3,7 @@ var webpackDevMiddleware = require('webpack-dev-middleware');
 var webpackHotMiddleware = require('webpack-hot-middleware');
 var config = require('./webpack.config');
 
-var app = new require('express')();
+var app = new (require('express'))();
 var port = 3000;
 
 var compiler = webpack(config);