From 7b8d88fa059d2a945e17c800d4f2bbc958755e5c Mon Sep 17 00:00:00 2001
From: K900 <me@0upti.me>
Date: Fri, 8 Mar 2024 14:42:31 +0300
Subject: [PATCH] nixos/steam: fix eval after #293564

---
 nixos/modules/programs/steam.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/programs/steam.nix b/nixos/modules/programs/steam.nix
index d9fe8f54efd8..a2f95134d039 100644
--- a/nixos/modules/programs/steam.nix
+++ b/nixos/modules/programs/steam.nix
@@ -45,7 +45,7 @@ in {
       apply = steam: steam.override (prev: {
         extraEnv = (lib.optionalAttrs (cfg.extraCompatPackages != [ ]) {
             STEAM_EXTRA_COMPAT_TOOLS_PATHS = makeBinPath cfg.extraCompatPackages;
-          }) // prev.extraEnv;
+          }) // (prev.extraEnv or {});
         extraLibraries = pkgs: let
           prevLibs = if prev ? extraLibraries then prev.extraLibraries pkgs else [ ];
           additionalLibs = with config.hardware.opengl;