diff --git a/pkgs/servers/dns/knot-resolver/default.nix b/pkgs/servers/dns/knot-resolver/default.nix
index 383ad85cfa5..d4210c31eb8 100644
--- a/pkgs/servers/dns/knot-resolver/default.nix
+++ b/pkgs/servers/dns/knot-resolver/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, pkgconfig, utillinux, hexdump, which
+{ stdenv, fetchurl, pkgconfig, hexdump, which
 , knot-dns, luajit, libuv, lmdb
 , cmocka, systemd, hiredis, libmemcached
 , gnutls, nettle