From 0f096eb287273bb5c943cb40178ce9b6c4bba047 Mon Sep 17 00:00:00 2001
From: Eman Resu <78693624+quatquatt@users.noreply.github.com>
Date: Thu, 21 May 2026 17:08:34 -0400
Subject: [PATCH] lib.lists.flatten: save function call when recursing

---
 lib/lists.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/lists.nix b/lib/lists.nix
index 860bf5560797..8766d3f25d21 100644
--- a/lib/lists.nix
+++ b/lib/lists.nix
@@ -445,7 +445,7 @@ rec {
 
     :::
   */
-  flatten = x: if isList x then concatMap (y: flatten y) x else [ x ];
+  flatten = x: if isList x then concatMap flatten x else [ x ];
 
   /**
     Remove elements equal to `e` from a list.  Useful for `buildInputs`.