--- a/custom-packages.nix	Mon May 16 22:34:02 2016 +0200
+++ b/custom-packages.nix	Sat Jun 04 17:55:58 2016 +0200
@@ -1,14 +1,15 @@
 { system ? builtins.currentSystem }:
 
 let
+  maintainers = import ./maintainers.nix;
   pkgs = import <nixpkgs> { inherit system; };
+  lib = pkgs.stdenv.lib // { inherit maintainers; };
+  stdenv = pkgs.stdenv // { inherit lib; };
 
-  stdenv.lib.maintainers = stdenv.lib.maintainers // {tzeman = "Tomáš Zeman <tzeman@volny.cz>";};
-  
-  callPackage = pkgs.lib.callPackageWith (pkgs // pkgs.xlibs // self);
+  callPackage = lib.callPackageWith (pkgs // pkgs.xlibs // self);
 
   self = {
-    qmailanalog = callPackage ./pkgs/qmailanalog { };
+    qmailanalog = callPackage ./pkgs/qmailanalog { inherit stdenv; };
   };
 in
 self

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/maintainers.nix	Sat Jun 04 17:55:58 2016 +0200
@@ -0,0 +1,4 @@
+{
+  tzeman = "Tomáš Zeman <tzeman@volny.cz>";
+}
+# vim: et ts=2 sw=2 

--- a/pkgs/qmailanalog/default.nix	Mon May 16 22:34:02 2016 +0200
+++ b/pkgs/qmailanalog/default.nix	Sat Jun 04 17:55:58 2016 +0200
@@ -30,7 +30,7 @@
     homepage = "${web}/${pkg}.html";
     license = stdenv.lib.licenses.publicDomain.shortName;
     platforms = stdenv.lib.platforms.gnu;
-    #maintainers = [ stdenv.lib.maintainers.tzeman ];
+    maintainers = [ stdenv.lib.maintainers.tzeman ];
   };
 }