diff --git a/.env.example b/.env.example
index 6f36dfc..6aa60df 100644
--- a/.env.example
+++ b/.env.example
@@ -3,4 +3,6 @@ ENV= #Default production
 #App Port
 PORT= #Default 80
 #Host
-HOST= #Default localhost
\ No newline at end of file
+HOST= #Default localhost
+#Prefix URL
+PREFIX_URL= #Default ''
\ No newline at end of file
diff --git a/package.json b/package.json
index 9d2d875..46dbbc2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "test-list-app",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "Starter Kit of server side render of react with backend in go",
   "scripts": {
     "start": "cd build/server && ./react-server",
diff --git a/src/frontend/components/App.tsx b/src/frontend/components/App.tsx
index 04ae6ec..e7d1ddb 100644
--- a/src/frontend/components/App.tsx
+++ b/src/frontend/components/App.tsx
@@ -3,9 +3,10 @@ import PrincipalRoutes from './PrincipalRoutes';
 import { config } from '../../../config';
 
 const App = () => {
+	const { PREFIX_URL } = config;
 	if(config.ENV === 'development') {
 		useEffect(() => {
-			const ws = new WebSocket(`wss://${config.HOST}/ws`);
+			const ws = new WebSocket(`wss://${config.HOST}${PREFIX_URL}/ws`);
 			ws.onmessage = (event) => {
 				if (event.data === 'reload') {
 					window.location.reload();