diff --git a/pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix b/pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix
index b05d973bb3d32..7650dcdc8c704 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix
@@ -63,6 +63,7 @@ appleDerivation' (if headersOnly then stdenvNoCC else stdenv) (
   MIG = "mig";
   MIGCOM = "migcom";
   STRIP = "${stdenv.cc.bintools.targetPrefix or ""}strip";
+  RANLIB = "${stdenv.cc.bintools.targetPrefix or ""}ranlib";
   NM = "${stdenv.cc.bintools.targetPrefix or ""}nm";
   UNIFDEF = "unifdef";
   DSYMUTIL = "dsymutil";