diff --git a/Plugin/usr/local/emhttp/plugins/varaverk/include/scheduler.php b/Plugin/usr/local/emhttp/plugins/varaverk/include/scheduler.php
index 91d525c..c89c5c5 100644
--- a/Plugin/usr/local/emhttp/plugins/varaverk/include/scheduler.php
+++ b/Plugin/usr/local/emhttp/plugins/varaverk/include/scheduler.php
@@ -59,11 +59,15 @@ function vv_cron_rebuild(array $schedule): bool {
         $logDir  = dirname($logFile);
         if (!is_dir($logDir)) mkdir($logDir, 0755, true);
         $flags   = !empty($entry['log_enabled']) ? ' --log' : '';
-        $lines[] = "{$entry['cron']} " . CRON_USER . " bash \"$script\"$flags >> \"$logFile\" 2>&1";
+        $lines[] = "{$entry['cron']} bash \"$script\"$flags >> \"$logFile\" 2>&1";
     }
     $lines[] = "";
 
-    return file_put_contents(CRON_FILE, implode("\n", $lines)) !== false;
+    // dcron (dillon's cron, Unraid's system crond) reads /etc/cron.d/ but refuses
+    // world-writable files and does not use a username field in system crontab format.
+    if (file_put_contents(CRON_FILE, implode("\n", $lines)) === false) return false;
+    chmod(CRON_FILE, 0600);
+    return true;
 }
 
 // Extract the suggested cron and label from a bash script header.