diff --git a/test/customBoot.js b/test/customBoot.js
index 0254412..8295642 100644
--- a/test/customBoot.js
+++ b/test/customBoot.js
@@ -67,7 +67,7 @@ window.addEventListener("load", () => {
     htmlReporter.initialize();
 
     // Use messageProxy socket to request spec injection
-    window.sendMessage({
+    messageProxy.sendMessage({
         subject: "injectSpecs"
     });
 });
diff --git a/test/messageProxy.js b/test/messageProxy.js
index 97bd611..268f25e 100644
--- a/test/messageProxy.js
+++ b/test/messageProxy.js
@@ -3,8 +3,10 @@
 // Create socket connection
 const socket = new WebSocket("ws://localhost:8080");
 
-window.sendMessage = (message) => {
-    socket.send(JSON.stringify(message));
+window.messageProxy = {
+    sendMessage (message) {
+        socket.send(JSON.stringify(message));
+    }
 }
 
 const reporterMethods = [
@@ -21,7 +23,7 @@ const customReporter = {};
 // Populate reporter methods
 for (const method of reporterMethods) {
     customReporter[method] = function (result) {
-        sendMessage({
+        messageProxy.sendMessage({
             subject: method
           , data: result
         });