From 3b3cb64ddafd44fe35c5e5da58f4667df8865203 Mon Sep 17 00:00:00 2001
From: Stefan Frijters <sfrijters@gmail.com>
Date: Mon, 9 Feb 2026 02:49:19 +0100
Subject: [PATCH] mozart-binary: move env variable(s) into env for
 structuredAttrs

---
 pkgs/development/compilers/mozart/binary.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/compilers/mozart/binary.nix b/pkgs/development/compilers/mozart/binary.nix
index a19aac53d5de..382cb2fa6cfd 100644
--- a/pkgs/development/compilers/mozart/binary.nix
+++ b/pkgs/development/compilers/mozart/binary.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation {
     tk-8_5
   ];
 
-  TK_LIBRARY = "${tk-8_5}/lib/tk8.5";
+  env.TK_LIBRARY = "${tk-8_5}/lib/tk8.5";
 
   nativeBuildInputs = [ makeWrapper ];