From 43e5eeb5b82b32bed825131024c85fa36afab5ea Mon Sep 17 00:00:00 2001
From: Yueh-Shun Li <shamrocklee@posteo.net>
Date: Mon, 17 Aug 2026 19:53:13 +0800
Subject: [PATCH] fetchgit: respect user-provided derivationArgs.env

---
 pkgs/build-support/fetchgit/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/build-support/fetchgit/default.nix b/pkgs/build-support/fetchgit/default.nix
index 990e6c6f9889..94d1bf796b40 100644
--- a/pkgs/build-support/fetchgit/default.nix
+++ b/pkgs/build-support/fetchgit/default.nix
@@ -267,7 +267,7 @@ lib.makeOverridable (
             // meta.identifiers or { };
           };
 
-          env = {
+          env = derivationArgs.env or { } // {
             NIX_PREFETCH_GIT_CHECKOUT_HOOK = finalAttrs.postCheckout;
           };