diff --git a/plinth/modules/xmpp/static/jsxc-plinth.js b/plinth/modules/xmpp/static/jsxc-plinth.js
index 17e69d759..26b1953c5 100644
--- a/plinth/modules/xmpp/static/jsxc-plinth.js
+++ b/plinth/modules/xmpp/static/jsxc-plinth.js
@@ -52,7 +52,8 @@ $(function() {
         loginForm: {
             form: '#jsxc-login-form',
             jid: '#jsxc-username',
-            pass: '#jsxc-password'
+            pass: '#jsxc-password',
+            onAuthFail: 'ask',
         },
         checkFlash: false,
         rosterAppend: 'body',