diff --git a/pkgs/os-specific/linux/jool/cli.nix b/pkgs/os-specific/linux/jool/cli.nix
index 4c18f478798e..dbcf9522e723 100644
--- a/pkgs/os-specific/linux/jool/cli.nix
+++ b/pkgs/os-specific/linux/jool/cli.nix
@@ -10,6 +10,11 @@ stdenv.mkDerivation {
 
   src = sourceAttrs.src;
 
+  outputs = [
+    "out"
+    "man"
+  ];
+
   nativeBuildInputs = [ autoreconfHook pkg-config ];
   buildInputs = [ libnl iptables ];
 
diff --git a/pkgs/os-specific/linux/jool/source.nix b/pkgs/os-specific/linux/jool/source.nix
index 87e36fe5a9eb..600dd8a33a4a 100644
--- a/pkgs/os-specific/linux/jool/source.nix
+++ b/pkgs/os-specific/linux/jool/source.nix
@@ -1,11 +1,11 @@
 { fetchFromGitHub }:
 
 rec {
-  version = "4.1.7";
+  version = "4.1.8";
   src = fetchFromGitHub {
     owner = "NICMx";
     repo = "Jool";
     rev = "v${version}";
-    sha256 = "08z23mi6xkr6zzp0hzh1cppvl2y0177s0lnpxqbpy8jiii5fxw8f";
+    hash = "sha256-b+1EM172NRnnTcbJOwBQfytIRuIr8zZBlKBBV/e7Ttg=";
   };
 }