diff --git a/config/server.js b/config/server.js
index d457eb6..91b6369 100644
--- a/config/server.js
+++ b/config/server.js
@@ -3,7 +3,7 @@ module.exports = ({ env }) => ({
   port: env.int('PORT', 1337),
   url: env('STRAPI_URL', null),
   admin: {
-    url: env('STRAPI_ADMIN_URL', null),
+    url: env('STRAPI_ADMIN_URL', '/admin'),
     auth: {
       secret: env('ADMIN_JWT_SECRET', '71b106d7b2a4853774b0b27424b77097'),
     },