diff --git a/actions/backupaccount.php b/actions/backupaccount.php
index 92bbaff2df..7f37f3b851 100644
--- a/actions/backupaccount.php
+++ b/actions/backupaccount.php
@@ -76,6 +76,10 @@ class BackupaccountAction extends FormAction
         $this->raw($stream->getString());
     }
 
+    public function isReadOnly($args) {
+        return true;
+    }
+
     function lastModified()
     {
         // For comparison with If-Last-Modified