diff --git a/src/runtime/WHMEventSource.js b/src/runtime/WHMEventSource.js
index 47390378..3a2a0e4e 100644
--- a/src/runtime/WHMEventSource.js
+++ b/src/runtime/WHMEventSource.js
@@ -1,10 +1,14 @@
 /*
  * If the consumers setup is to use webpack-hot-middleware with a custom express server
  * we want to bind onto the EventSource for error tracking
+ *
+ * [Ref](https://github.com/webpack-contrib/webpack-hot-middleware/blob/cb29abb9dde435a1ac8e9b19f82d7d36b1093198/client.js#L152)
  */
 
+const singletonKey = '__webpack_hot_middleware_reporter__';
+
 module.exports = function loadWHMEventSource(messageHandler) {
-  const client = require('webpack-hot-middleware/client');
+  const client = window[singletonKey] || require('webpack-hot-middleware/client');
 
   client.useCustomOverlay({
     showProblems(type, data) {