diff --git a/dashboard/public/translation/en.json b/dashboard/public/translation/en.json
index 03f17bbab..d6d096d94 100644
--- a/dashboard/public/translation/en.json
+++ b/dashboard/public/translation/en.json
@@ -791,7 +791,9 @@
         "changeDashboardDomain": {
             "title": "Dashboard Domain",
             "description": "Change the dashboard to the “my” subdomain of the selected domain",
-            "changeAction": "Change domain"
+            "changeAction": "Change domain",
+            "confirmMessage": "This will invalidate all passkeys for users.",
+            "confirmTitle": "Really change dashboard domain?"
         },
         "domainDialog": {
             "addTitle": "Add Domain",
diff --git a/dashboard/src/components/DashboardDomain.vue b/dashboard/src/components/DashboardDomain.vue
index 96a0e6a30..590d12b45 100644
--- a/dashboard/src/components/DashboardDomain.vue
+++ b/dashboard/src/components/DashboardDomain.vue
@@ -1,6 +1,10 @@
 <script setup>
 
-import { ref, onMounted } from 'vue';
+import { useI18n } from 'vue-i18n';
+const i18n = useI18n();
+const t = i18n.t;
+
+import { ref, onMounted, inject } from 'vue';
 import { Button, ProgressBar, SingleSelect, InputGroup } from '@cloudron/pankow';
 import { prettyLongDate } from '@cloudron/pankow/utils';
 import { TASK_TYPES } from '../constants.js';
@@ -14,6 +18,8 @@ const taskModel = TasksModel.create();
 const dashboardModel = DashboardModel.create();
 const domainsModel = DomainsModel.create();
 
+const inputDialog = inject('inputDialog');
+
 const domains = ref([]);
 const formError = ref('');
 const originalDomain = ref('');
@@ -64,6 +70,16 @@ async function refreshTasks() {
 }
 
 async function onSubmit() {
+  const confirm = await inputDialog.value.confirm({
+    title: t('domains.changeDashboardDomain.confirmTitle'),
+    message: t('domains.changeDashboardDomain.confirmMessage'),
+    confirmStyle: 'danger',
+    confirmLabel: t('main.dialog.yes'),
+    rejectLabel: t('main.dialog.cancel'),
+    rejectStyle: 'secondary',
+  });
+  if (!confirm) return;
+
   formError.value = '';
 
   lastTask.value.active = true;