diff --git a/blueprints/ember-cli-deploy-cs/files/config/deploy.js b/blueprints/ember-cli-deploy-cs/files/config/deploy.js
index a69d7b8..0ff73d4 100644
--- a/blueprints/ember-cli-deploy-cs/files/config/deploy.js
+++ b/blueprints/ember-cli-deploy-cs/files/config/deploy.js
@@ -27,7 +27,9 @@ module.exports = function(deployTarget) {
       accessKeyId: process.env.AWS_ACCESS_KEY_ID,
       secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
       region: 'us-west-1',
-      prefix: require('../package.json').name,
+      prefix: function(context) {
+        return require('../package.json').name + context.project.config('production').baseURL;
+      },
       filePattern: '**/*.{' + fileExtWhitelist.join(',') + '}',
     },
     's3-index': {