diff --git a/pkgs/tools/nix/nixos-option/default.nix b/pkgs/tools/nix/nixos-option/default.nix
index 56cb3e130038..7cca1eb7b38d 100644
--- a/pkgs/tools/nix/nixos-option/default.nix
+++ b/pkgs/tools/nix/nixos-option/default.nix
@@ -1,14 +1,33 @@
-{ lib, stdenv, boost, cmake, pkg-config, nix }:
+{ lib
+, stdenv
+, boost
+, cmake
+, pkg-config
+, installShellFiles
+, nix
+}:
 
 stdenv.mkDerivation {
   name = "nixos-option";
 
   src = ./.;
+  postInstall = ''
+    installManPage ${./nixos-option.8}
+  '';
 
   strictDeps = true;
-  nativeBuildInputs = [ cmake pkg-config ];
-  buildInputs = [ boost nix ];
-  cmakeFlags = [ "-DNIX_DEV_INCLUDEPATH=${nix.dev}/include/nix" ];
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+    installShellFiles
+  ];
+  buildInputs = [
+    boost
+    nix
+  ];
+  cmakeFlags = [
+    "-DNIX_DEV_INCLUDEPATH=${nix.dev}/include/nix"
+  ];
 
   meta = with lib; {
     license = licenses.lgpl2Plus;
diff --git a/nixos/doc/manual/manpages/nixos-option.8 b/pkgs/tools/nix/nixos-option/nixos-option.8
similarity index 100%
rename from nixos/doc/manual/manpages/nixos-option.8
rename to pkgs/tools/nix/nixos-option/nixos-option.8