diff --git a/cloudron.js b/cloudron.js
index 5dfe58f..a5487aa 100644
--- a/cloudron.js
+++ b/cloudron.js
@@ -354,7 +354,7 @@ Cloudron.prototype.addUser = function (username, email) {
 };
 
 Cloudron.prototype.setAliases = function (owner, aliases) {
-    var res = request.put(this._origin + '/api/v1/mailboxes/' + owner.username + '/aliases')
+    var res = request.put(this._origin + '/api/v1/users/' + owner.id + '/aliases')
         .query({ access_token: this._credentials.accessToken })
         .send({ aliases: aliases })
         .end();