diff --git a/server/route.js b/server/route.js
index 0a85b827..e52f8def 100644
--- a/server/route.js
+++ b/server/route.js
@@ -157,7 +157,7 @@ function route(request, response, callback) {
 }
 
 function buildIndex(json, callback) {
-    fs.readFile(getIndexPath(), 'utf8', (error, template) => {
+    fs.readFile(getIndexPath(isDev), 'utf8', (error, template) => {
         if (error)
             return callback(error);