diff --git a/fn/dns.php b/fn/dns.php
index 2e4e5c6..1ef9d7b 100644
--- a/fn/dns.php
+++ b/fn/dns.php
@@ -23,7 +23,7 @@ function knotc(array $cmds, array &$output = NULL, int &$return_code = NULL): vo
 		CONF['dns']['knotc_path'],
 		'--blocking',
 		'--timeout',
-		'3',
+		'20',
 		'--',
 		...$cmds,
 	], $output, $return_code);