diff --git a/pkgs/tools/system/daemon/default.nix b/pkgs/tools/system/daemon/default.nix
index ba9527b3b04..29f976998d5 100644
--- a/pkgs/tools/system/daemon/default.nix
+++ b/pkgs/tools/system/daemon/default.nix
@@ -1,15 +1,18 @@
-{stdenv, fetchurl, perl}:
+{ stdenv, fetchurl, perl }:
+
+stdenv.mkDerivation rec {
+  pname = "daemon";
+  version = "0.7";
 
-stdenv.mkDerivation {
-  name = "daemon-0.7";
   src = fetchurl {
-    url = "http://libslack.org/daemon/download/daemon-0.7.tar.gz";
+    url = "http://libslack.org/daemon/download/daemon-${version}.tar.gz";
     sha256 = "0b17zzl7bqnkn7a4pr3l6fxqfmxfld7izphrab5nvhc4wzng4spn";
   };
+
   makeFlags = [ "PREFIX=$(out)" ];
   buildInputs = [ perl ];
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "Turns other processes into daemons";
     longDescription = ''
       Daemon turns other process into daemons. There are many tasks that need
@@ -18,8 +21,8 @@ stdenv.mkDerivation {
       writing daemons in languages other than C, C++ or Perl (e.g. /bin/sh,
       Java).
     '';
-    license = stdenv.lib.licenses.gpl2Plus;
-    maintainers = [ stdenv.lib.maintainers.sander ];
-    platforms = stdenv.lib.platforms.unix;
+    license = licenses.gpl2Plus;
+    maintainers = [ maintainers.sander ];
+    platforms = platforms.unix;
   };
 }