diff --git a/templates/index.js b/templates/index.js
index 1049858..877aa45 100644
--- a/templates/index.js
+++ b/templates/index.js
@@ -7,7 +7,7 @@ function compile(isDevMode = false) {
   const templatePath = path.resolve(__dirname, 'index.html.handlebars');
   const template = fs.readFileSync(templatePath).toString();
   const compiled = handlebars.compile(template);
-  let result = '';
+  let result;
   if (isDevMode) {
     result = compiled(data.dev);
   } else {