diff --git a/pkgs/games/xconq/default.nix b/pkgs/games/xconq/default.nix
index 8f4366fbcb87..6d7c9f4e6fbb 100644
--- a/pkgs/games/xconq/default.nix
+++ b/pkgs/games/xconq/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   };
 
   buildInputs = [ cpio xorgproto libX11 libXmu libXaw libXt tcl tk libXext
-    fontconfig makeWrapper ];
+    fontconfig makeWrapper tcl.tclPackageHook ];
 
   configureFlags = [
     "--enable-alternate-scoresdir=scores"
@@ -39,12 +39,6 @@ stdenv.mkDerivation rec {
     sed -re 's@MediumBlue@LightBlue@g' -i tcltk/tkconq.tcl
   '';
 
-  postInstall = ''
-    for file in $out/bin/*; do
-      wrapProgram $file --prefix TCLLIBPATH ' ' "${tk}/lib"
-    done
-  '';
-
   meta = with lib; {
     description = "A programmable turn-based strategy game";
     maintainers = with maintainers; [ raskin ];