diff --git a/lib/utils/create_app.js b/lib/utils/create_app.js
index e9ff19c..2f96a45 100644
--- a/lib/utils/create_app.js
+++ b/lib/utils/create_app.js
@@ -1,6 +1,6 @@
 const fs = require('fs');
 const path = require('path');
-const { dest, main_built, server_routes } = require('../config.js');
+const { dest, main_built, server_routes, dev } = require('../config.js');
 
 module.exports = function create_app(src, dest, routes, options) {
 	function create_client_main() {
@@ -19,7 +19,9 @@ module.exports = function create_app(src, dest, routes, options) {
 				.join(', ')
 		}]`;
 
-		const main = template.replace('__routes__', code);
+		const main = template
+			.replace(/__routes__/g, code)
+			.replace(/__dev__/g, String(dev));
 
 		fs.writeFileSync(main_built, main);