diff --git a/pkgs/os-specific/linux/libselinux/default.nix b/pkgs/os-specific/linux/libselinux/default.nix
index fbf7e4bd995a..fcea787ed79c 100644
--- a/pkgs/os-specific/linux/libselinux/default.nix
+++ b/pkgs/os-specific/linux/libselinux/default.nix
@@ -39,6 +39,7 @@ stdenv.mkDerivation rec {
     "SHLIBDIR=$(out)/lib"
 
     "LIBSEPOLA=${lib.getLib libsepol}/lib/libsepol.a"
+    "ARCH=${stdenv.hostPlatform.linuxArch}"
   ] ++ optionals enablePython [
     "PYTHON=${python3.pythonForBuild.interpreter}"
     "PYTHONLIBDIR=$(py)/${python3.sitePackages}"