diff --git a/pkgs/os-specific/linux/jool/cli.nix b/pkgs/os-specific/linux/jool/cli.nix
index dbcf9522e72..67e1575ff7e 100644
--- a/pkgs/os-specific/linux/jool/cli.nix
+++ b/pkgs/os-specific/linux/jool/cli.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, autoreconfHook, pkg-config, libnl, iptables }:
+{ lib, stdenv, fetchFromGitHub, fetchpatch, autoreconfHook, pkg-config, libnl, iptables }:
 
 let
   sourceAttrs = (import ./source.nix) { inherit fetchFromGitHub; };
@@ -10,6 +10,11 @@ stdenv.mkDerivation {
 
   src = sourceAttrs.src;
 
+  patches = [ (fetchpatch {
+    url = "https://github.com/NICMx/Jool/commit/490ddb0933061cab3c2a7952dffc61789deed565.patch";
+    hash = "sha256-1dpMth0ocPHujlk+96St1a63RipcWiL/CdmSz4O87Lg=";
+  }) ];
+
   outputs = [
     "out"
     "man"