diff --git a/pkgs/os-specific/linux/kernel-headers/default.nix b/pkgs/os-specific/linux/kernel-headers/default.nix
index 9c228e1f4f1e..cba9997b325e 100644
--- a/pkgs/os-specific/linux/kernel-headers/default.nix
+++ b/pkgs/os-specific/linux/kernel-headers/default.nix
@@ -49,7 +49,7 @@ let
       pname = "linux-headers";
       inherit version;
 
-      ARCH = stdenvNoCC.hostPlatform.linuxArch;
+      env.ARCH = stdenvNoCC.hostPlatform.linuxArch;
 
       strictDeps = true;
       enableParallelBuilding = true;