diff --git a/src/etc/inc/plugins.inc.d/unbound.inc b/src/etc/inc/plugins.inc.d/unbound.inc
index 27ba3b12a..f21821abc 100644
--- a/src/etc/inc/plugins.inc.d/unbound.inc
+++ b/src/etc/inc/plugins.inc.d/unbound.inc
@@ -416,7 +416,7 @@ function unbound_configure_do($verbose = false, $interface = '')
         flush();
     }
 
-    mwexec('/usr/local/bin/flock -n -E 0 -o /tmp/unbound_start.lock /usr/local/opnsense/scripts/unbound/start.sh');
+    mwexec_bg('/usr/local/bin/flock -n -E 0 -o /tmp/unbound_start.lock /usr/local/opnsense/scripts/unbound/start.sh');
 
     if (isset($config['unbound']['regdhcp'])) {
         $domain = $config['system']['domain'];