diff --git a/web/nginx.conf b/web/nginx.conf
index 2f901303..e841df22 100644
--- a/web/nginx.conf
+++ b/web/nginx.conf
@@ -33,6 +33,7 @@ http {
 		location / {
 			root   /var/www/html/web;
 			index  index.html index.htm;
+			# add try_files directive to avoid 404 error while refreshing pages
 			try_files $uri  /index.html;
 		}