diff --git a/core/server/middleware/index.js b/core/server/middleware/index.js
index 842660d1d1..5f38ce0d60 100644
--- a/core/server/middleware/index.js
+++ b/core/server/middleware/index.js
@@ -215,7 +215,7 @@ function serveSharedFile(file, type, maxAge) {
                     if (err) {
                         return next(err);
                     }
-
+                    buf = buf.toString().replace('{{blog-url}}', config.url.replace(/\/$/, ''));
                     content = {
                         headers: {
                             'Content-Type': type,
diff --git a/core/shared/robots.txt b/core/shared/robots.txt
index 0120d9be2a..b9f1b17caa 100644
--- a/core/shared/robots.txt
+++ b/core/shared/robots.txt
@@ -1,3 +1,3 @@
 User-agent: *
-Sitemap: /sitemap.xml
+Sitemap: {{blog-url}}/sitemap.xml
 Disallow: /ghost/