diff --git a/dashboard/src/components/BackupSiteScheduleDialog.vue b/dashboard/src/components/BackupSiteScheduleDialog.vue
index ad816dbe2..9e81cfc6c 100644
--- a/dashboard/src/components/BackupSiteScheduleDialog.vue
+++ b/dashboard/src/components/BackupSiteScheduleDialog.vue
@@ -67,6 +67,8 @@ defineExpose({
     site.value = s;
     busy.value = false;
     formError.value = false;
+    days.value = [];
+    hours.value = [];
 
     const currentRetentionString = JSON.stringify(site.value.retention);
     const selectedRetention = BackupSitesModel.backupRetentions.find(function (x) { return JSON.stringify(x.id) === currentRetentionString; });