diff --git a/src/appstore.js b/src/appstore.js
index 975cbbc1c..2ea936b7d 100644
--- a/src/appstore.js
+++ b/src/appstore.js
@@ -346,6 +346,8 @@ async function registerCloudron3() {
 async function unlinkAccount() {
     debug('unlinkAccount: Unlinking existing account.');
 
+    if (constants.DEMO) throw new BoxError(BoxError.BAD_STATE, 'Not allowed in demo mode');
+
     await unregister();
     return await registerCloudron3();
 }